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SERVICE MANUAL - Appliance Factory Parts

1. NOTE This guide covers several different models The refrigerator you have purchased may have some or all of the items listed below The locations of the features shown below may not match your model Digital Sensor Control Refrigerator Light Sheives Fresh Snack can Dispenser Optibin Crisper Keeps fruits and vegetable fresh and crisper customcube Icemaker Bin Durabase Divider Filter Dairy Bin Q Design A Door OE Box Q Refrigerator Door Rack Q Freezer Light Qwie Basket Freezer Door Rack Tilting on some models NOTE This guide covers several different models The refrigerator you have purchased may have some or all of the items listed below The locations of the features shown below may not match your model Digital Sensor Control Refrigerator Light shelves chef Fresh Snack Pan can Dispenser Optibin Crisper Keeps fruits and vegetable fresh and crisper Ice Tray Bin Durabase Divider Filter Dairy Bin Design A Door OE Box Q Refrigerator Door Rack Q Freezer Light Qwie Basket Freez
2. 12 13 TROUBLESHOOTING titi iio csl nie idera aA X Ed Uoc DB CE S HR RE re 14 19 COMPRESSOR AND ELECTRIC 0 14 PTCAND OLP terim ectetuer be Cibo dct a EA rd 15 OTHER ELEGTRICAL COMPONENTS Es ete cte b ruled e b ced be UE cette 16 SERVICE DIAGNOSIS CHART net e atat at i Une adr cR eee nt 17 REFRIGERATION CYCLE ei pipere dee eine een n eet p ee 18 19 OPERATION PRINCIPLE amp REPAIR METHOD OF ICEMAKER 22 11 20 23 DESCRIPTION OF FUNCTION amp CIRCUIT OF MICOM BEST DISPENSER 24 44 DESCRIPTION OF FUNCTION amp CICUIT OF MICOM GOOD 45 64 REFRIGERATOR EXPLODED VIEW SERVICE PARTS LIST 65 102 SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator 1 Check the refrigerator for electrical faults 8 When tilting the refrigerator remove any materials on 2 To prevent electric shock unplug before servicing the refrigerator especially the glass shelves and stored foods 3 Always check line voltage and amperage m 9 When servicing the evaporator wear cotton gloves 4 Use standard electrical components eee This is to prevent injuries from the sharp evaporator 5 Don t touch metal products in the freezer with wet fins hands This may cause fros
3. NE L B 4 5 L d H tn 1 FUSE MI 72 C HEATER SEATH L BK NEGRO BLACK YL AMARILLO YELLOW WH BLANCO WHITE BN CAFE BROWN RD ROJO RED BO NARANJA BRIGHT ORANGE SB AZUL CIELO SKY BLUE GN VERDE GREEN BL AZUL BLUE PR VIOLETA PURPLE GRIS GRAY PK ROSA PINK 5413 6 TROUBLESHOOTING 6 1 COMPRESSOR AND ELECTRIC COMPONENTS P S Remove PTC Starter Reated Voltage YES from Compressor and 410 measure voltage between Terminal C of Compressor and Terminals 5 or 6 of PTC YES No Voltage OLP disconnected Replace OLP NO Check connection condition Reconnect Applied voltage isn t Advise customer that in range of Rating power supply needs to be Voltage 10 checked by an electrician Check resistance between M C S C and M S in Motor Compressor Check resistance of Motor Compressor Open or short Replace Compressor 4 5 9 Q Check Check resistance of The range of resistance is between 1 50Q Ok two terminals in PTC Starter resistance of PTC Starter Not open Check OLP Check resistance of two Replace PT
4. Im CON4 P63 26 R6 OS 16 2KF 1 AIN3 PER ce 5 5 WP gi RM 2 P62 25 177 R7 72 293 26 1KF 5 xs AIN2 L 2KJ c R SENSOR 223 T eov RD1 14 Pei 24 22 R8 26 1KF AIN1 2KJ D SENSOR IC1 223 T eov 16 MICOM 2 777 The upper CIRCUIT reads REFRIGERATOR temperature FREEZER Temperature and DEFROST SENSOR temperature for defrosting and the indoor temperature for compensating for the surrounding temperature into MICOM OPENING or SHORT state of each TEMPERATURE SENSOR are as follows Defrosting Sensor Refrigerator Sensor POINT Voltage 53 SENSOR CHECK POINT NORMAL 30 C 50 C SHORT CIRCUITED OPEN Freezer Sensor POINT Voltage POINT Voltage 05V 45V OV 5V 9 2 6 Refrigeration Compartment Stepping Motor Damper Circuit The circuit shown below is the damper circuit to regulate the refrigerator temperature CON5 sal 106 15 A 12 5 1uF A Ina Ins 50V 14 6 STEPPING Bea 27 10KJ 4 10KJ 7 10KJ ST 0P8 TA7774F T B MOTOR 28 6 7 65 iss B P66 5 1243 18 IC1 MICOM 54 9 2 7 Temperature Compensation amp Overcooling Undercooling Compensation Circuit 1 Refrigerator Temperature Compensation Refrigerator Resistance Temperature Remark RCR Compensation 180
5. 1000 COMPRESSOR eee ICE SENSOR HEATER SEATH 1 R LAMPS 0 GN YL gt ba B Be 3 ASSEMBLY 3 6 BL EARTH PART d 5 ICE MAKER PART ICE MAKER CONFIGURATION P T C START OPTION HEATER AND FUSE CONFIGURATION 1159127V 50 60Hz 220 240V 50 60Hz LG COMP EMBRACO COMP 220 240V COMP 1159127V 50 60Hz 220 240V 50 60Hz U B3 SU d A E lt M a zo 2 98 C POWER FUSE M S W M igi EN GEL Les BK NEGRO BLACK BN CAFE BROWN RD ROJO RED BO NARANJA BRIGHT ORANGE YL AMARILLO YELLOW GN VERDE GREEN BL AZUL BLUE PR VIOLETA PURPLE GY GRIS GRAY WH BLANCO WHITE SB AZUL CIELO SKY BLUE PK ROSA PINK 12 Good Better DIAGRAMA ELECTRICO CIRCUIT DIAGRAM PWB PCB ASSEMBLY D CON101 P T C START OPTION WATER VALVE PART HEATER AND FUSE CONFIGURATION CAPACITOR PART ICE MAKER PART ICE MAKER CONFIGURATION PLUG TYPE AND 5141312 COMP EARTH PART ON CIRCUIT DIAGRAM B A
6. 8 2 6 Refrigeration Compartment Stepping Motor Damper Circuit The circuit shown below is the damper circuit to regulate the refrigerator temperature CON6 e IC11 9 16 7774 5 yum A R41 fe Tres B 14 2 STEPPING 1 10KJ 10KJ MOTOR 5 11 2 5 3 4 5 7 10 4 7 12 15 8 2 7 Dispenser Input LED Output Circuit XY CON7 PUMP SWITCH R51 en pa I i ps CC18 qw P 33 P30 2 foy MES S ES d KRAIO6M MICOM R54 1 270J 1 34 8 2 8 Temperature Compensation amp Overcooling Undercooling Compensation Circuit 1 Refrigerator Temperature Compensation R17 10KJ RCR1 10KJ Refrigerator Resistance Temperature Remark RCR Compensation 180 2 5 C Compensation by 200 Au 33 KQ 1 5 C 18 1 0 C 12 0 5 C 10 KQ 0 C Standard Temperature 8 2 0 5 C Compensation by 56ko 1 5 C 2KQ 2 0 C 470 Q 2 5 C IC1 MICOM Table of Temperature Compensation by adjusting the resistance difference from the current temperature e g If the refrigerator compensation resistance RCR is changed from 10K the current resistance to 18K the adjustment resistance the temperature of
7. TENP CONPENSATION REPLACING dra RUE SAP SAE NOTE 180KJ 2 5 C WARM R3 56KJ 2 0 10KJ 3 Peo 33KJ 15 C AINO 18KJ 10 C RCR1 12KJ 0 5 C 10KJ 10K J 0 C BASIS 8 2KJ 0 5 C 5 6 10 C 3 3KJ 15 2 0 COLD 470J ERO ie FIG 1 CIRCUIT DIAGRAM 63 P12 CONS CON101 P13 AM P15 P16 P07 P06 POS P04 P11 P63 AIN3 P62 AIN2 P61 AIN1 P10 P67 P64 P65 P66 37 RL1 Ae m 390J 405 FS F6 F7 10 390J 6 Re R3 R4 n ms JE m m 390J 247 R6 R7 12 RL4 A 1509 0101 0102 0105 32 oe EXPRESS R5 9 s smo smoz 0 FREEZING CC6 102 R4 1009 FREEZER REFRIGERATOR TEMP TEMP PWB ASS Y DISPLAY 1 F SENSOR 2 3 R SENSOR 4 5 2KJ D SENSOR 223 50V if 6 77 77 v m CONS 2KJ 51 1 2KJ R DOOR S W 23 RIO 2 30 R9 2KJ cens 2KJ F DOOR S W 23 T 4 9 9 16 1C6 E 15 12 5 Ima Ims 50 14 6 STEPPING 27 10KJ 10KJ ST 0P8 TANITA 2 B L MOTOR 28 B 6 B 7 10 29 8
8. Replace door liner 58 PROBLEM INDICATED BY CHECK CHECKING METHOD CAUSE SOLUTION COOLING is poor If REFRIGERATOR 1 If FREEZER TEMPERATURE Check is FREEZER Make sure the TEMPERATURE is normal TEMPERATURE is too low DOOR isattached is too low 2 If amount of cool air from Make sure that the amount FAN MOTOR is poor Replace FAN MOTOR FAN MOTOR is and speed of cool air are Passage of cool air Remove impurities sufficient sufficient by touching the is blocked check supplied on the EVA frozen See DEFROSTING is poor REFRIGERATOR 3 Door Line contact Check door seal when Door liner damaged Replace Door liner door is closed DEFROSTING is NO DEFROSTING 1 If HEATER emits heat USE TEST MODE2 HEATER disconnection Replace HEATER poor forced DEFROSTING TEMPERATURE FUSE Replace TEMPERATURE disconnection FUSE Connection is poor Check EVAPORATOR connection and wire of MAIN PWB CONNECTOR DEFROST SENSOR is poor Replace DEFROST SENSOR HEATER RELAY is poor Replace RY3 of MAIN PWB 2 If DRAIN PIPE is blocked Check DRAIN PIPE DRAIN PIPE is blocked Remove ice and impurities 3 If ice remains after DEFROSTING Check HEATER PLATE resistance Make sure that DEFROST Connection is poor Reassemble the SENSOR is connected DEFROST SENSOR Make sure that FREEZER DOOR does not close Reassemble DOOR REFRIGERATOR DOOR is closed
9. 1 ae St freezer Alof Cutor short circuit wire Failure of SNC Inspect Connecting 2 Refrigerator sensor Alof Cutorshort circuit wire wires on each sensor 3 oe PRESS Alof Cut or short circuit wire Snapping of defrost 2hours later After heater or Temperature 4 Poor of defrost e e starting defrost If fuse pull out of sensor doesn t be over Connector indicated 46 F 8 C minimum 2 Hours after failure occurs 47 9 1 10 TEST Mode 1 The Test mode allows checking the PCB and the function of the product as well as finding out the defective part in case of an error A The test mode is operated by pressing two buttons at Display panel While in the test mode the function control button is not recognized but the recognition tone beep sounds After exiting the test mode be sure to reset by unplugging and then plugging in the appliance If an error such as a sensor failure is detected while in the test mode the test mode is cleared and the error code is displayed 6 While an error code is displayed the test mode will not be activated MODE MANIPULATION CONTENTS REMARKS TEST1 Push Express Freezing 1 Continuous operation of the key and COLDER KEY of COMPRESSOR Freezer Temp at the 2 Continuous operation of the freezer fan same time over 3 3 STEPPING DAMPER O
10. 2 5 C Compensation by 56 420 33KQ 1 5 C 18 1 0 C 12 0 5 C 10 0 C Standard Temperature 8 2 KQ 0 5 C Compensation by avc 2 3 3 1 5 C 2KQ 2 0 C 4700 2 5 C P60 AINO R3 10KJ 23 RCR1 10KJ Table of Temperature Compensation by adjusting the resistance difference from the current temperature e g If the refrigerator compensation resistance RCR is changed from 10K the current resistance to 18K the adjustment resistance the temperature of the refrigerator rises 33 8 F 1 C 2 The temperature compensation for refrigerator compartment is in the following table Revised resistance is 4700 3 3kQ 5 6kQ 8 2kQ 10kQ 12kO 18kQ 33kQ 56kO 180kQ resent resistant No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 5 C 4 4 5 C 5 C 4700 change Up Up Up Up Up Up Up Up Up Up 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 3 5 C 4 C 4 5 C 2kQ Down Change Up Up Up Up Up Up Up Up Up 1C 0 5 C No 0 5 C 1C 1 5 C 2 C 2 5 C 3 C 3 5 C 4 C 3 3kQ Down Down Change Up Up Up Up Up Up Up Up 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 3 5 C 5 6kQ Down Down Down Change Up Up Up Up Up Up Up 2 C 1 5 C 1 C 0 5 No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 8 2kQ Down Down Down Down Change
11. 56 OCKI040K949 CAPACITOR FIXED CERAMIC HIGH DIELECTRIC D 50V 80 20 FIYSV 57 MURATA 5 59 080 5006609 RESISTOR FIXED CARBON FILM 150 OHM 1 4W 5 00 TAS2 SMAR RL4 60 _ 09039006609 RESISTOR FIXED CARBON FILM 390 OHM 1 4 W 5 007 2 SMART RLI RL3 080 0006608 RESISTOR FIXED CARBON FILM 100 OHM 1 4 W 5 00 TAS2 SMAR R5 62 ORJIOOIEG72 RESISTOR METAL GLAZED CHIP IK OHM 1 8 W 57 2012 R TP ROHM RI6 63 ORJZ00IE672 RESISTOR METAL GLAZED CHIP 2K OM 1 8 W 54 2012 R TP ROHI 64 ORD20016608 RESISTOR FIXED CARBON FILM 2K OM 1 4 W 5 00 52 SMAR Re RI2 65 ORH2200L622 RESISTOR METAL GL AZED CHIPI 220 OHM 1 8 W 2012 5 007 D ROH RI 66 ORJ220IF672 RESISTOR METAL GLAZED CHIP 2 2K 1 8 W 57 2012 R TP ROHM 67 ORJ470IE672 RESISTOR METAL GLAZED CHIP 4 7K OHM 1 8 W 57 2012 R TP ROH RI 68 0ORJ470IE672 RESISTOR METAL GL AZED CHIP 4 7K OHM 1 8 W 5 202 R TP ROH 69 ORD47016609 RESISTOR FIXED CARBON FILM 4 7K OHM 1 4 W 5 00 52 SMAR 70 ORJIOOZEG72 RESISTOR METAL GLAZED CHIP OHM 1 8 W 57 2012 R TP ROH 7 ORJIOO2E672 RESISTOR METAL GLAZED CHIP OHM W 57 2012 R TP 72 09010026609 RESISTOR FIXED CARBON FILM OHM 1 4 W 5 00 52 SMAR R3 R4 RCRI RI3 RI5 73 _0RJ2702E672 RESISTOR METAL GLAZED CHIP Z7K OHM 1 8 W_5 2012 ROM 74 ORJIOO4E672 RESISTOR METAL GLAZED CHIP 1 8 W 57 2012 R TP ROM R2 75 ORJ2612F472 RESISTOR FIXED ME
12. Be sure to use specific replacement parts since calculating time by the IC1 may be changed If changed the OSC1 SPEC will not work 9 2 3 Reset Circuit Ke MICOM IC5 EIS 181 KIA7042AP RESET WI 104 JE RE The RESET circuit allows all the functions to start at the initial conditions by initializing various parts including the RAM inside the MICOM IC1 when the power is initially supplied or the power supply to the MICOM is restored after a momentary power failure For the initial 10ms of power supply LOW voltage is applied to the MICOM RESET terminal During a normal operation 5V is applied to the RESET terminal If a malfunction occurs in the RESET IC the MICOM will not operate 50 9 2 4 Load Buzzer Drive amp Open Door Detection Circuit 1 Load Drive Condition Check 1 e 3 POWER 5 1 7 RUNG OPADTR con CIR COMP m ALE15B12 4 1 E 5 KID65003AF N PTC START o 1 9 9 5 t J 4 P73 RY2 COOLING FAN ALDT12 2500rpm 3 E 4 12 Y3 ALD112 o M F FAN M 2200rpm 5 2 2 13 x 4 P75 Y4 ALD112 MICOM DEF HEATER FUSE M 14 2 2 p76 LAMP F 40W 8
13. connected Ice Maker Kit When ejector blades don t reach Defects of 3 malfunction park position over 18 minutes HALL IC MOTOR since Harvest Mode starts HEATER RELAY ERROR indicators in table can be checked only in TEST mode 23 8 DESCRIPTION OF FUNCTION amp CIRCUIT OF MICOM 8 1 FUNCTION 8 1 1 Function 1 When the appliance is plugged in it is set to 37 F for the Refrigerator and 0 F for the Freezer You can adjust the Refrigerator and the Freezer control temperature by pressing the COLDER button or the WARMER button 2 When the power is initially applied or restored after a power failure it is set to the setting temperature as you set before power off applied to DISPENSER MODEL DISPENSER MODEL REFRIGERATOR TEMP DISPENSER EXPRESS WATERFILTER FREEZER TEMP moo maa COLDER WARMER LOCK 37 F IS RECOMMENDED 0 F IS RECOMMENDED RESET COLDER WARMER Control range 32 F 46 F Control range 6 F 9 F 0 C 8 C 21 C 13 C BEST MODEL REFRIGERATOR TEMP mE FREEZER TEMP F V F UN ON gt UN mm DIN COLDER WARMER B I DW a C 0 F IS RECOMMENDED 37 F IS RECOMMENDED COLDER WARMER Control range 32 F 46 F Control range 6 F 9 F 0 C 8 C 21 C 13 C 8 1 2 How to Change the Temperat
14. 16 12 IC NO VENTING NAIS 6920 820098 RELAY 6558 14 250 12700 OMRON RY4 69208200 7 FELAY VSB IZTB TAKAMISAWA DCIZV 2507 IC FUJITSU 6920900024 RELAY ALDII2 NAISTHAILAND 250V 12 16 6mA IA MAIS 6212 88008 RESONATOR CERAMIC 5150400 503 MURATA MURATA OSCI 6102 58003A VARISTOR INRI40271 ILJIN UL VDE 270V ILJIN VAI 6102880018 VARISTOR INRI4D621 ILJIN UL VDE 620V ILJIN VAI ODRIO7009AA DIODE RECTIFIERS FRIO7 TP DELTA 0041 1000V DELTA 01 02 05 06 7 DIODE RECTIFIERS RL2 SANKEN BK NON 400V 2A 40A SONSEC JOUA SANKEN D3 D4 DIODE RECTIFIERS D3SBA60 BK SHINDENGEN 600V_4A SHINDENGEN HDI 1 2 VARISTOR INRI4D33IK ILJIN UL CSA VDE ILJIN VAI 4767 CAPACITOR FIXED ELECTROLYTIC 4TUF 4507 20 BULK SNAP SAM WHA CAPACITOR FIXED ELECTROLYTIC TYPE SOV 20 FW TP 5 O57 CE 0 1076 638 CAPACITOR FIXED ELECTROLYTIC I00UF 505 56 25V 207 FNS TP 5 SAM WHA CEIZ CAPACITOR FIXED ELECTROLYTIC RX 25V 207 BULK SNAP NOST SAM WHA 7 GIE CAPACITOR FIXED ELECTROLYTIC 6B0UF 35V 0 2 TP 5 FLUO SAM CE4 0 2278 638 CAPACITOR FIXED ELECTROLYTIC 2200 KME 16 20 FMS TP 5105 SAM WHA CES OCEZ278H538 CAPACITOR FIXED ELECTROLYTIC 2200F RG TYPE 25V 207 FM5 TP 511051 WHA
15. Fill Park Position 5 When Stage 5 is completed in the TEST mode minimize MICOM in 5 seconds the time needed to supply water resets to the previous status in the TEST mode Diagnosis TABLE STAGE ITEMS INDICATOR REMARKS Five seconds after heater starts heater will 1 HEATER go off if temperature recorded by sensor is 10 C or lever is in up position Five seconds after heater starts you can 2 MOTOR confirm that motor is moving HALL IC detection You can confirm Hall Ic detection of position ss co L 3 L Em 1 Ten ss eS l 3 of position I Two seconds after detection of initial 4 VALVE position you can confirm that valve is on HALL IC detection You can check whether hall is sensing Full 5 ice condition If there is a full filled error the of full filled Ice fifth LED is not on Five seconds after fifth stage is completed 6 reset Mark previous status on TEST mode the icemaker reset at initial status 7 3 DEFECT DIAGNOSIS FUNCTION 7 3 1 ERROR CODES shown on Ice Maker water supply control panel NO DIVISION INDICATOR CONTENTS REMARKS Mark time to Display switch 1 Normal supply None operates properly Ice Making E Make sure that the wire 2 Sensor i Cut or short circuited wire on each sensor is malfunction
16. IC1 MICOM This circuit generates the base clock for calculating time and the synchro clock for transmitting data from and to the inside logic elements of the IC1 MICOM Be sure to use specific replacement parts since calculating time by the IC1 may be changed If changed the OSC1 SPEC will not work 8 2 3 Reset Circuit NA EE Jk e H ka7os2 E 29 RESET 2 ion CC6 104 ITI d 2 MICOM The RESET circuit allows all the functions to start at the initial conditions by initializing various parts including the RAM inside the MICOM IC1 when the power is initially supplied or the power supply to the MICOM is restored after a momentary power failure For the initial 10ms of power supply LOW voltage is applied to the MICOM RESET terminal During a normal operation 5V is applied to the RESET terminal If a malfunction occurs in the RESET IC the MICOM will not operate 30 8 2 4 Load Buzzer Drive amp Open Door Detection Circuit 1 Load Drive Condition Check CON1 HH POWER 5 ICE MAKER CON2 T 6 5 N o a 514 37 8 12 oH P34 di b COMP RY2 perm ALE15B12 pre starr i m I Brocpt P35 COOLING FAN RY3 ALD112 IU ss 8 1 dH DEF HEATER FUSE M gt P36 LAMP F 40W A FR
17. p15 136 82 FT eil L L d 6H3 1 G1 P16 37 pee 5 n4 9 07 445 390 10 RL2 pda 346 11 RL3 POS 390J 247 12 RL4 PO4 1 H8 150J L IL 32 11 5 959 R4 100J 10KJ HH Sd r CC6 102 56 9 3 RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE DETECTED RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR amp BY SENSOR SENSOR DEFROST SENSOR amp ROOM SENSOR 20 C 22 3 KQ 77 15 C 16 9 KQ 60 KQ 10 C 13 0 KQ 47 3 KQ 5 C 10 1 KQ 38 4 KQ 0 C 7 8 KQ 30 KQ 5 C 6 2 KQ 24 1 KQ 10 4 9 19 5 15 3 9 15 9 20 3 1 KQ 13 KQ 25 C 2 5 11 KQ 307 2 0 8 9 407 1 4 6 2 50 C 0 8 4 3 The resistance of the SENSOR has a 5 common difference Measure the resistance of the SENSOR after leaving it for over 3 minutes in the measuring temperature This delay is necessary due to sensor response speed 57 9 4 TROUBLESHOOTING PROBLEM INDICATED BY CHECK CHECKING METHOD CAUSE SOLUTION POWER SOURCE 1 The whole DISPLAY FREEZER Check if FREEZER POWER SOURCE is poor Check outlet Voltage iS poor LED SEVEN SEGMENT REFRIGERATOR REFRIGERATOR DOOR IS DISPLAY is off OPEN and check display 2 DISPLAY LED If LAMP is dim Check visually Ap
18. temperature At 72 C it turns the Defrost Heater off Fuse M is a safety device for preventing over heating of the Heater when defrosting 1 Pull out the grille assembly Figure 6 2 Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 7 GRILLE ASSEMBLY DEFROST CONTROL ASSEMBLY Figure 6 Figure 7 3 5 LAMP Figure 8 3 5 1 Refrigerator Compartment Lamp 1 Unplug the power cord from the outlet 2 Remove refrigerator shelves 3 Release the hooks on both ends of the lamp shield and pull the shield downward to remove it 4 Turn the lamp counterclockwise 5 Assemble in reverse order of disassembly Replacement bulb must be the same specification as the original Max 60 W 2EA Figure 9 3 5 2 Freezer Compartment Lamp 1 Unplug refrigerator or disconnect power 2 Reach behind light shield to remove bulb 3 Replace bulb with a 60 watt appliance bulb 4 Plug in refrigerator or reconnect power 3 6 CONTROL BOX REFRIGERATOR 1 First remove all shelves in the refrigerator than remove the Refrigerator control Box by loosening 2 screws CONTROL BOX COVER LAMP Figure 10 2 Remove the Refrigerator Control Box by pulling it downward 3 Disconnect the lead wire on the right position and separate the lamp sockets 3 7 MULTI DUCT 1 R
19. 14 FREEZER DOOR 16 h gi SWITCH x P40 LAMP R 6042 1 68 RA REFRIGERATOR x DOOR SWITCH E 8 8 40 ta 3 5 2 P37 WATER VALVE TE E 1 21 CONS Paz72207 C 200 2000 RC FILTER P14 PPG fas O 1 TRA P12 RIO 47uF 72 05 1 30 XIN CSTSO400MGO3 Aem Ll 52 4i Te XOUT TEMP COMPENSATION REPLACING RCRI SE 3 29 RESET IRESSTANCE 0F COLD STORAGE ROOM RCR1 TEMP COMPENSATION 2 5 2 C 15 C 1 3 vec P44 SO1 x 7 z P43 SI1 8 oi 19 4 59 43 a SK P42 SCK1 5 BE 2 fa Slow 002 54 NOTE R17 WARMER 10KJ 5963 RCR1 10kJ FACTORY COLDER 4 7 28 35 46 49 52 54 56 58 PWB ASSEMBLY 43 P52 P51 nts BEST DISPLAY PCB R 21 22 517 stp te CON102 D101 ng 5 K3 p20l25 4 pz S 2 19 2 24 5 he D103 P17 5 Did DH pic 23 5 7 2
20. 6 Freezer Door Rack 3 DISASSEMBLY 3 1 DOOR e Refrigerator Door 1 Remove the hinge cover by pulling it upwards 2 Loosen the hexagonal bolts attaching the upper hinge to the body and lift the freezer door lt HINGE COVER BOLT HINGE Figure 1 3 Pull out the door gasket to remove from the door foam assembly GASKET Figure 2 e Freezer Door 1 Loosen the hexagonal bolts attaching the lower hinge to the body to remove the refrigerator door only LOWER HINGE Figure 3 2 Pull out the door gasket to remove from the door foam assembly 3 2 DOOR SWITCH 1 To remove the door switch pry it out with a slotted type driver as shown in Figure 4 2 Disconnect the lead wire from the switch LEAD WIRE DOOR SWITCH Figure 4 3 3 FAN AND FAN MOTOR 1 Remove the freezer shelf If your refrigerator has an icemaker remove the icemaker first Remove the grille by pulling it out and by loosening a screw 2 3 and disassemble the shroud Pull out the fan and separate the Fan Motor and Bracket Remove the Fan Motor assembly by loosening 2 screws BRACKET MOTOR Figure 5 3 4 DEFROST CONTROL ASSEMBLY Defrost Control assembly consists of Defrost Sensor and FUSE M The Defrost Sensor works to defrost automatically It is attached to the metal side of the Evaporator and senses its
21. 6 8 13 16 39 41 m 64 EXPLODED VIEW CASE PARTS CAUTION Use the part number to order part not the position number FREEZER PARTS CAUTION Use the part number to order part not the position number EV REFRIGERATOR PARTS CAUTION Use the part number to order part not the position number 67 EV DOOR PARTS CAUTION Use the part number to order part not the position number Models LRDN22734WW 68 EV DOOR PARTS CAUTION Use the part number to order part not the position number Models LRDN22734SB LRDN22734ST LRDN22734TT 69 LG Electronics Inc June 2009
22. DEFROSTING is poor See DEFROSTING is normal sticking on the EVAPORATOR is poor 3 If SENSOR Check the resistance SENSOR RESISTANCE is Replace SENSOR is normal of the Refrigerator poor SENSOR 4 Door Line contact Check the seal when Door liner damaged Replace door liner the door is closed 38 PROBLEM INDICATED BY CHECK CHECKING METHOD CAUSE SOLUTION COOLING is poor If REFRIGERATOR 1 If FREEZER TEMPERATURE Check is FREEZER Make sure the TEMPERATURE is normal TEMPERATURE is too low DOOR isattached is too low 2 If amount of cool air from Make sure that the amount FAN MOTOR is poor Replace FAN MOTOR FAN MOTOR is and speed of cool air are Passage of cool air Remove impurities sufficient sufficient by touching the is blocked check supplied on the EVA frozen See DEFROSTING is poor REFRIGERATOR 3 Door Line contact Check door seal when Door liner damaged Replace Door liner door is closed DEFROSTING is NO DEFROSTING 1 If HEATER emits heat USE TEST MODE2 HEATER disconnection Replace HEATER poor forced DEFROSTING TEMPERATURE FUSE Replace TEMPERATURE disconnection FUSE Connection is poor Check EVAPORATOR connection and wire of MAIN PWB CONNECTOR DEFROST SENSOR is poor Replace DEFROST SENSOR HEATER RELAY is poor Replace RY3 of MAIN PWB 2 If DRAIN PIPE is blocked Check DRAIN PIPE DRAIN PIPE is blocked Remove ice an
23. Up Up Up Up Up Up Refrigerator 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C RCR 10kQ Down Down Down Down Down Change Up Up Up Up Up 3 C 2 5 C 2 C 1 5 C 1C 0 5 C No 0 5 C 1 C 1 5 C 2 C 12kQ Down Down Down Down Down Down Change Up Up Up Up 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 18kQ Down Down Down Down Down Down Down Change Up Up Up 4C 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 33kKQ Down Down Down Down Down Down Down Down Change Up Up 4 5 C 4 C 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 56kQ Down Down Down Down Down Down Down Down Down Change Up 5 C 4 5 C 4 3 5 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 180kQ Down Down Down Down Down Down Down Down Down Down Change NOTE This circuit is designed to input the necessary temperature compensation values into the MICOM This adjusts the refrigerator temperature which is different in each model 55 9 2 8 Key Button Input amp Display Light On Circuit The circuit shown above determines whether a function control key on the operation display is pushed It also turns on the corresponding function indication LED DISPLAY The drive type is the scan type 7 CON3 m 33 101 CIC 4 ER Te EE E 34 P13 7H 1
24. function will be canceled 4 To activate these function to press the Express Freezing key and the LED will turn ON This function will remain activated for 24 hrs The first three hours the compressor and Freezer Fan will be ON The next 21 hours the freezer will be controlled at the lowest temperature After 24 hours or if the Express Freezing key is pressed again the freezer will return to its previous temperature 5 For the first three hours notice the following cases 1 Compressor and freezer fan HIGH RPM continuously operate for three hours 2 If defrost starts during EXPRESS FREEZING EXPRESS FREEZING operates for the rest of time after defrost is completed when EXPRESS FREEZING operation time is less than 90 minutes If EXPRESS FREEZING operates for more than 90 minutes the EXPRESS FREEZING will operate for two hours after defrost is completed 3 If EXPRESS FREEZING is pressed during defrost EXPRESS FREEZING LED is on but this function will start seven minutes after defrost is completed and it shall operate for three hours 4 If EXPRESS FREEZING is selected within seven minutes after compressor has stopped the compressor compressor delays seven minutes shall start after the balance of the delay time 5 The fan motor in the freezer compartment runs at high speed during EXPRESS FREEZING 6 For the rest of the 21 hours the freezer will be controlled at the lowest temperature 8 1 6 REFRIGERATOR LAMP AUTO OFF 1 To av
25. gt the Thermistor is_ Thermistor incorrect 17 Check Components 6 5 REFRIGERATION CYCLE Troubleshooting Chart STATE OF STATE OF THE TEMPERATURE Genes THE UNIT EVAPORATOR OF THE MERE COMPRESSOR PARTIAL Freezer Low flowing sound of A little higher Refrigerant level is low due LEAKAGE compartment and Refrigerant is heard and than ambient to a leak Refrigerator don t frost forms in inlet only temperature Normal cooling is possible by In cool normally restoring the normal amount of ba refrigerant and repairing the leak gt COMPLETE Freezer Flowing sound of refrigerant Equal to ambient No discharging of Refrigerant m H LEAKAGE compartment and is not heard and frost isn t temperature Normal cooling is possible by Refrigerator don t formed restoring the normal amount of cool normally refrigerant and repairing the leak o PARTIAL Freezer Flowing sound of refrigerant A little higher Normal discharging of the CLOG compartment and is heard and frost forms than ambient refrigerant o Refrigerator don t in inlet only temperature The capillary tube is faulty m cool normally 5 WHOLE Freezer Flowing sound of refrigerant Equal to ambient Normal discharging of the 2 CLOG compartment and is not heard and frost isn t temperature Refrigerant 9 Refrigerator don t cool forme
26. risk of lamp heat when Refrigerator door opens for 7 min refrigerator lamp is auto off 45 9 1 5 Alarm for Open Door 1 This feature sounds a buzzer when the freezer or refrigerator door is not closed within 1 minute after it is opened 2 One minute after the door is opened the buzzer sounds three times each for 1 2 seconds These tones repeat every 30 seconds 3 The alarm is cancelled when the freezer or the refrigerator is closed while the buzzer sounds Freezer Door or Refrigerator Door Closed Closed Closed 3 Times 3 Times 3 Times 3 Times Buzzer Within 1 min 1 min 4 gt 4 gt 30sec 30 sec 30 sec 9 1 6 Buzzer Sound When the button on the front Display is pushed a Ding Dong sound is produced Refer to the Buzzer Circuit 7 2 4 No 2 9 1 7 Defrosting removing frost 1 Defrosting starts each time the COMPRESSOR running time reaches 7 hours 2 For initial power on or for restoring power defrosting starts when the compressor running time reaches 4 hours 3 Defrosting stops if the sensor temperature reaches 46 4 F 8 C or more If the sensor doesn t reach 46 4 F 8 C in 2 hours the defrost mode is malfunctioning Refer to the defect diagnosis function 7 1 9 4 Defrosting won t function if its sensor is defective wires are cut or short circuited 9 1 8 Electrical Parts Are Turned On Sequentially Electrical parts such as COMP defrosting heater freezer FAN e
27. sensor is lower than ON heater ON heater OFF o 113 F 45 C 3 when power cuts SERVICE in 1 2 second COMP in 1 2 second Freezer FAN 5 ON gt ON Reset to normal operation Total load in 7 minute COMP jn1 2 second Freezer FAN from TEST MODE OFF gt ON 26 8 1 13 Defect Diagnosis Function 1 Automatic diagnosis makes servicing the refrigerator easy 2 When a defect occurs the buttons will not operate but the tones such as ding will sound 3 When the defect CODE removes the sign it returns to normal operation RESET 4 The defect CODE shows on the Refrigerator and Freezer Display DISPENSER MODEL EXPRESS FREEZING WATER FILTER REFRIGERATOR TEMP DISPENSER FREEZER TEMP 74 Lock COLDER WARMER 37 F IS RECOMMENDED 0 F IS RECOMMENDED RESET COLDER WARMER Defect code signs Defect code signs BEST MODEL EXPRESS REFRIGERATOR TEMP COLDER WARMER CD Defect code signs ERROR CODE on display panel DIN Wt 37 F IS RECOMMENDED FREEZING 0 F IS RECOMMENDED Defect code signs FREEZER TEMP COLDER WARMER NO ITEM ERROR CODE CONTENTS REMARKS 1 Er Cut or short circuit wire Failure of es Inspect Connecting wires 2 Refrigerator sensor EF 3 Cut or short circu
28. status all Loads are off Compressor Fan Damper Heater Even is Demonstration Mode the refrigerator Lamp automatic off function warks normally and can be demonstrated 4 It reset if you do again as clause 48 9 2 PCB FUNCTION 9 2 1 Power Circuit r 4 2 D5 5 42 7812 7805 e VDD POWE 5 no 1 1 22 Varef val CEI cert c Lo m 7 D T 25V 25V 7 e e 21 Vss Vass Ese 194 TEST The secondary part of the TRANSFORMER is composed of the power supply for the display the BLDC FAN Motor drive 15 5 V the relay drive 12 Vdc and the MICOM and IC 5 Vdc The voltage for each part is as follows PART VA 1 2 CE 1 4 VOLTAGE 115 Vac 12 Vdc 15 5 Vdc 5V VAT is a part for preventing over voltage and noise When 385V or higher power is applied the inside elements are short circuited and broken resulting in blowout of the fuse in order to protect the elements of the secondary part of the TRANSFORMER 49 9 2 2 Oscillation Circuit Sa MICOM CSTSO400MGO3 inns XIN Tm 1 XOUT This circuit generates the base clock for calculating time and the synchro clock for transmitting data from and to the inside logic elements of the IC1 MICOM
29. 101 Y 4 490900 M P Qty No DESCRIPTION SPEC MAKER REMARK 1 1 6870JB8091A PWB PCB KS PJT GOOD BETTER DISPLAY DOO SAN 16 2 1 3 6630AQ9159H WAFER SMAW250 09 YEON HO CON101 4 5 66009870006 SVITCH TACT JTP1230A JEIL 12 V DC SOMA JEIL SW101 102 6600JB8005A KPT 1105A KYUNG IN Ie 26 TACT S W KPT 1109G YUNG IN SW103 14 7 ODLLEOOI9AA LED LT1824 81 BCM TP GREEN 2 RITR7 F1 F 7 3 8 000414809 DIODE SWITCHING IN4148 26MM PYUNG CHANG D101 102 103 DELTA 12 10 6854B50001A JUMP WIRE 0 6 52MM TP TAPING SN 10MM J101 J112 11 12 9VWF0120000 _ SDLDER RUSIN WIRE RSO D1 20 HEE SUNG o 13 49111004 SOLDER SOLDERING H63A 14 59333105 FLUX SG 0 825 0 830 KOREA 206 OKI 62 9 6 PWB DIAGRAM 9 6 1 PWB Main Assembly CON1 I 5 POWER H 7 ias CON2 STARING CAPACITOR COMP ER START 7 1 t O COOLING F AN 2500rpm 3 2200rpm 7 DEF HEATER FUSE M 3 2 p76 LAME 40W 653 DOOR S W F 5 1 7 9 77 LAMP R lt 60W 2 LT Ur 8 DOOR S W R 1 TOSHIBA TMP87C846N IC1 CSTSO400MGO3
30. 2 RESISTOR METAL GLAZEDICHPI 330 1 8 W 2012 5 00 D ROM R47 ORHIOOAL 622 RESISTOR METAL GLAZEDICHPI OFM 178 W 2012 5 00 D ROHM RII ORNI6226409 RESISTOR FIXED CARBON FILM 16 2 OHM 1 4 W 1 00 52 SMART CHOHYANG ORN26126409 RESISTOR FIXED CARBON FILM 26 1K OHM 1 4 W 1 00 2 SMART CHOHYANG FD FRI 09039016609 RESISTOR FIXED CARBON FILM 3 9K OHM 1 4 W 5 00 52 SMART CHOHY ANG R45 ORD47016609 RESISTOR FIXED CARBON FILM 4 7K OHM 1 4 W 5 00 52 SMART CHOHYANG R62 Feb ORJEB00F672 RESISTOR METAL GLAZEDICHPI 680 OM 1 8 W 57 2012 R TP ROM R6 09010025609 RESISTOR FIXED CARBON FILM TOK OHM 1 4 W 5 007 52 SMART CHOHYANG RI7 RCRI RAT R43 ORHIBOILG22 RESISTOR METAL GLAZEDICHPI 1 8K OHM 178 W 2012 5 00 D ROHM R7 09027026609 RESISTOR FIXED CARBON FILM 27K OHM 1 4 W 5 00 2 SMART CHOHYANG 09047026509 RESISTOR FIXED CARBON FILM 47K OM 1 4 W 5 00 2 SMART CHOHY ANG ORISIOIEA 72 RESISTOR FIXED METAL FILM 9 1K 178 W 17 2012 R TP ROM RLI ORJ2401E472 RESISTOR FIXED METAL FILM 2 4K OHM 178 W Iz 2012 R TP ROM R 2 ORJZ700E672 RESISTOR METAL GLAZEDICHPI 270 1 8 W 2012 5 00 D ROHM R54 TRANSISTOR BIPOLAR BK 10126 60 05 OTR3I9809AA TRANSISTOR KTC3198 TP Y KEC eh OTRKEBOOIGA TRANSISTOR BIPOLAR 65 R TP 50723 SOV 100 KEC OTRIOGOOSAC TRANSISTOR BIPOLAR 106 07 TRAN
31. 5 015 2s 05s 05s OV 5V H H H By xe iz 1 1 V IC1 B 1 263 kz Ding 221 kz Dong 4 i Sn id 1 1 OV i D i 1 1 263kz Beep OFF 4 Open Door Detection Circuit Check 4 H CON6 R40 63 R39x 2KJ cc15 T 2KJ 6 FREEZER DOOR 225 5 B SWITCH 777 CONS id REFRIGERATOR DOOR SWITCH MICOM Measurement Freezer LOUER PIN NO 63 amp PIN NO 8 Refrigerator Door Closed 5V Open OV 32 8 2 5 Temperature Sensor Circuit NA Ms e in CON6 60 16 2KF P64 12 CC12 T 2KJ 223 T RRI ZE Rov 11 61 R37 26 1KF 19 5 L 2KJ e ss 225 RD1 4 9 P66 62 7 R38 26 1KF 7 P b d ve E one LI 223 50V 7 MICOM Ji FREEZER SENSOR REFRIGERATOR SENSOR DEFROST SENSOR The upper CIRCUIT reads REFRIGERATOR temperature FREEZER Temperature and DEFROST SENSOR temperature for defrosting and the indoor temperature for compensating for the surrounding temperature into MICOM OPENING or SHORT state of each TEMPERATURE SENSOR are as follows SENSOR CHECK POINT NORMAL 30 C 50 C SHORT CIRCUITED OPEN Freezer Sensor POINT Voltage POINT B Voltage 5 45 OV 5V Refrigerator Sensor Defrosting Sensor POINT C Voltage 33
32. 6 6102 B8003A VARISTOR INRI4D271 ILJIN UL VDE 270V ILJIN VAI 37 6l02 BB00IB VARISTOR INRI4D621 ILJIN UL VDE BK 620V ILJIN VAI 38 00D400709AA DIODE RECTIFIERS IN4007 TP MOTOROLA IA DELTA 01 05 39 4 4 0 228 0 CAPACITOR AL ELECTROLYTIC 2200 UF SMS SG 35V M FL BULK SAM HWA CEI 42 _OCEI0B6J610 CAPACITOR FIXED ELECTROLYTIC 1000UF SMS SG 35V 20 FL BULK SAM E 43 OCEIOB6H6IB CAPACITOR AL ELECTROLYTIC 1000 UF 5 5 55 25V M FL TP 5 SAM HIA 44 00 4776 CAPACITOR FIXED ELECTROLYTIC 470UF SMS SG 25V 204 FL TP 5 SAM HIA CE3 45 OCE2276F638 CAPACITOR FIXED ELECTROLYTIC 220UF_SMS SG 16 20 TP 5 SAM HWA CE4 46 OCEIO76H638 CAPACITOR FIXED ELECTROLYTIC IOOUF 905 56 25V 20 FMS TP 5 SAM HIA 47 OCEIOG6K638 CAPACITOR FIXED ELECTROLYTIC IOUF_SMS SG 50V 20 TP 5 SAM HWA 48 OCEIOS6K638 CAPACITOR FIXED ELECTROLYTIC IUF_SMS SG 50V 20 FMS TP 5 SAM HIA CES 49 OCE4761H638 CAPACITOR FIXED ELECTROLYTIC 47UF 5 5 56 25V 20 TP 5 SAM HWA CES 50 OCQ223IlN409 CAPACITOR POLYESTER 0 022 UF D J PE TP SAM HWA 5 5i OCKIOZDKSEA CAPACITOR FIXED CERAMIC HIGH DIELECTRIC INF 2012 50V 807 20 R TP 52 OCK223DK96A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 22NF 2012 50V 80 20 R TP X7R MURATA CC7 CCII ajl gt 54 OCKTOADKOAA CAPACITOR FIXED CERAMICIHIGH DIELECTRIC IOON 2012 50V_R TP_ GRM40X7RIOAKSOPE MURATA CCI 0C5 5 gt
33. 9 QD 59105 Swio4 SEGI01 105 SEGIO2 nos No DESCRIPTION SPEC MAKER REMARK 1 6870JB8090A PWBCPCB KS PJT DISPENSER DISPLAY DOO SAN e 3 6630JB8005D WAFER SMAW250 11 YEON HO 101 4 6630JB8004U SMAW250 06 CON102 5 6600JB8005A SWITCH TACT KPT 1105A KYUNG IN w102 105 6 6600RRTOO2K JTP1230A JEIL 12V DC SOMA JEIL 7 6600 088004 TACT S W KPT 1109R KYUNG IN SW106 8 TACT S W KPT 1109G KYUNG IN 9 6327JB8001A DISPLAY LED ASSEMBLY LN4023 13EWRS GREEN 2 1V 1 7MCD LEDTECH SEGLSEGE 10 ODLLEO0S9AA LED LT8323 41 BCN 2 1V D3 TP GREEN 1102 105 11 ODD414809AA DIODE SWITCHING 1N4148 26MM PYUNG CHANG D107 113 12 0DD400400A 1N4004 DELTA D101 106 13 6854850001 JUMP WIRE 0 6MM 52MM TAPING SNCOMM J01 06 J08 13 14 9VWF 0120000 SOLDERCROSIN WIRE RSO D120 HEE SUNG 15 49111004 SOLDER SOLDERING H63A 16 59333105 FLUX SG 0 825 0 830 KOREA F H 206 KOKI 42 8 6 PWB DIAGRAM 8 6 1 PWB Main Assembly POWER 2 TEST ICE MAKER CON2 914 1 Gl 8 3 12 P34 F1 RY2 ALE15B12 j i e 38 LE 4 COOLING F AN RYS ALD112 Us ai DEF HEATER FUSE M P36 e LAMP F 40 p RY4 G5SB
34. C Starter terminals in OLP Open or short Replace OLP Check Check the power supply Supply HRS Did starting state under load voltage rating compressor Compressor attempting with 21096 start to re start after being off for 5 minutes 14 YES Compressor is OK Replace the compressor it 6 2 PTC AND OLP Observation value is 115V 60Hz 6 80 30 Normal operation of Compressor is impossible or poor Separate PTC Starter from Compressor and measure resistance between No 5 and 6 of PTC Starter with a Tester Figure 14 Replace PTC Starter The resistance value is 0Q short or open Shows continuity Separate OLP from Compressor and check resistance value between two terminals of OLP with a Tester Figure 15 Check another electric component Replace OLP Figure 15 15 6 3 OTHER ELECTRICAL COMPONENTS Not cooling at all Compressor Check for open short or doesn t run o gt incorrect resistance readings in the following components a Starting devices _ Short open or broken Poor contact or shorted b OLP c Compressor coil 39 Coil open or shorted d Wiring harness Poor cont
35. CAPACITOR FIXED ELECTROLYTIC TUF 50V 20 TP 51105 SAN WHA CEIO OCE476BH638 CAPACITOR FIXED ELECTROLYTIC 47UF KME TYPE 25V 20 FMS TP 5105 WHA CEG OCEIOGEK638 CAPACITOR FIXED ELECTROLYTIC TOUF_KMG 20 5 TP 50571 SAM WHA CE7 CES OCHI47IK562 CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 470 50V K X7RIX 1608 R TP MURATA CCT OCKZZI0RGIA CAPACITOR FIXED CERAMIC HIGH DIELECTRIC PSOPF D 250V 10 10 R TP SAM WHA 2 OCKI04DK94A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC IOONF 2012 50V R TP MURATA Ta 7 OCKIOZOKSIS CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 50V K B 52 MURATA CCI7 OCK2230K96A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 2012 507 BO 20 XIR MURATA CCI6 CCIB CCIS 0 2230 949 CAPACITOR FIXED CERAMIC HIGH DIELECTRIC Z2NF_5OV Z F 52 2 1 OCKIOZDK96A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC INF 2012 50V 80 20 R TP X7R MURATA 620 0 047418670 CAPACITOR FIXED FILM DA D 275V M W PP PIKOR CMe OCF 22408670 CAPACITOR FIXED FILM 220 0 275V 20 BULK NI PILKOR 0 04732 430 CAPACITOR FIXED FILM 47000PF_S 630V J NI R SAM WHA OCOZ24IN630 CAPACITOR FIXED FILM O 22UF D M WPE NI R SAM WHA CM4 OCOZ23IN409 CAPACITOR POLYESTER O 022UF D 100V_J SAM O5 ORJ2200H672 RESISTOR METAL GLAZEDICHPI 220 OHM 1 2 W 5 2012 R7IP SMART CHOHYANG R29 RESISTOR
36. CATED BY CHECK CHECKING METHOD CAUSE SOLUTION POWER SOURCE 1 The whole DISPLAY 1 FREEZER Check if FREEZER POWER SOURCE is poor Check outlet Voltage is poor LED SEVEN SEGMENT REFRIGERATOR REFRIGERATOR DOOR IS DISPLAY is off OPEN and check display 2 DISPLAY LED 2 If LAMP is dim Check visually Applied voltage error Use boosting TRANS SEVEN SEGMENT 3 The connection of Check connection of CONNECTOR connection Reconnect CONNECTOR DISPLAY operates the MAIN PWB CONNECTOR iS poor abnormally CONNECTOR TRANS FUSE is open Replace TRANS COOLING is poor NO COOLING 1 If the COMPRESSOR USE TEST MODE1 COMPRESSOR locked or Replace COMPRESSOR operate forced COOLING blocked If less than 7 minutes pass OLP PTC is poor Replace OLP PTC after compressor shuts off COMPRESSOR RELAY is Replace MAIN PWB don t press the KEY and poor wait THE CONNECTING WIRE Check the connection of the iS poor black wire of the MAIN PWB CONNECTOR CON2 2 If refrigerant is leaking Measure the amount of frost Refrigerant leakage Replace the leaking part and sticking on EVAPORATOR replace any lost refrigerant and the surface temperature of the condenser pipe FREEZER 1 If FAN MOTOR USE TEST MODE1 FAN MOTOR is poor Replace the FAN MOTOR TEMPERATURE is operates forced COOLING incorrect CONNECTING WIRE is poor Certify the MOTOR and the connection of the black wire of the MAIN PWB CONNECTOR CON2 2 If DEFROSTING Check the amount of frost
37. COM 9 1 FUNCTION 9 1 1 Function 1 When the appliance is plugged in it is set to 4 for Refrigerator and 4 for freezer You can adjust the Refrigerator and the Freezer control temperature by pressing the ADJUST button 2 When the power is initially applied or restored after a power failure it is automatically set to 4 amp 4 BETTER GOOD MODEL EXPRESS FREEZING 102 3 5167 gt WARMER REFRIGERATOR TEMP FREEZER TEMP gt ADJUST WARMER 41S RECOMMENDED 415 RECOMMENDED COLDER COLDER ADJUST 9 1 2 Control of freezer fan motor 1 Freezer fan motor has high and standard RPMs 2 High RPM is used when electricity is first on for express freezing and when refrigerator is overloaded But standard RPM is used for general purposes 3 To improve cooling speed and load corresponding speed the RPM of freezer fan motor shall change from normal speed to hign speed 4 High speed 2500RPM Initial power on or load corresponding operation express freezing Normal speed 2200RPM General working conditions 5 Fan motor stops when refrigerator of freezer door opens 9 1 3 EXPRESS FREEZING 1 The purpose of this function is to intensify the cooling speed of freezer and to increase the amount of ice 2 Whenever selection switch is pressed selection release the LED will turn ON or OFF 3 If there is a power cut and the refrigerator is power on again EXPRESS FREEZING f
38. EEZER DOO SWITCH P40 LAMP R 60W 2 8 VATER VALVE 28 Hr CON3 RC FILTER TCM VALVE LOAD TYPE COMP dp reas LAMP POWER MODE DISPENSER OPTIONAL MDL Measurement Location IC6 NO 13 NO 14 NO 16 NO 12 NO 15 ON 1V or below Condition OFF 12V 2 Fan motor driving circuit freezing compartment fan 1 This circuit makes standby power 0 by cutting off power supplied to ISs inside of the fan motor in the fan motor OFF 2 This is a circuit to perform a temporary change of speed for the fan motor and applies DC voltage up to 7 5V 16V to motor 3 This circuit prevents over driving the fan motor by cutting off power applied to the fan motor in the lock of fan motor by sensing the operation RPM of the fan motor 8 part b part part MOTOR OFF 2V less OV 5V MOTOR ON 13V 15V OV 2V 3V CON4 52 D PD0 Pw r 223 e 1 MICOM 3 Buzzer Drive Condition Check BUZZER Q1 PQ272207PL 20c 2000 _KRC106S _ ect R9 1KJ Fr nr 19 p12 pe Li w CE6 2 Condition Tone Ding Dong when the button on Alarm for open door FE Measure the display is pushed beep beep beep ment Location 10055 02
39. ES sue com DOOR S W F E i 1 l9 77 16 8 ER h IW nc com DOOR S W R FREEZER FREEZER LOAD TYPE COMP ee LAMP FAN MOTOR MOTOR HIG RPM LOW RPM Measurement Location 124 NO 11 NO 14 NO 15 NO 12 NO 13 ON 1V or below Condition OFF 12V 51 2 Buzzer Drive Condition Check e Q6 KRATOGM Q7 KRC106M BUZZER PQ272207PL 20C 2000 1 R1 7x 220J R16 5 1 Cl Er 25V Condition Tone Ding Dong when the button on Alarm for open door Measure OFF ment Location the display is pushed beep beep beep 10 056 02s 1016 2s 05s 0 56 s LL SV 5V 1 OV OV ov 4 4 21 5V ov ov IC1 B 2 ONE 7 21 kz Dong ipee OFF OV 3 Open Door Detection Circuit Check XY iu CON5 2KJ P10 51 1 cc10x L 2KJ R DOOR S W 223 T 2 R9 2KJ P67 30 3 2KJ _ DOOR S W 223 T t 4 O 777 MICOM Freezer PIN NO 31 amp PIN NO 30 Refrigerator Door Closed 5V Open OV 52 9 2 5 Temperature Sensor Circuit
40. FIXED METAL OXIDE FILM 150K IW 5 00 TASZ CHORY RI 0958202509 RESISTOR FIXED METAL OXIDE FILM OHM TW 5 007 52 SMART CHOHYANG RI ORSOIOIJG0S RESISTOR FIXED METAL OXIDE FILM T OM 5 007 52 SMART ROCP 0950470509 RESISTOR FIXED METAL OXIDE FILM 0 47 OM W 5 52 SMART CHOHYANG ROCP ORS5602K 641 RESISTOR FIXED METAL OXIDE FILM 56K 2 W 5 00 52 SMART yCHOHYANG R3 ORJB200H5 72 RESISTOR METAL GLAZEDICHPI 820 OFM 1 2 W 57 2012 R TP SMART CHOHYANG RIS RZ6 FESISTOR FIXED CARBON FILM 172 W 5 00 52 SMART CHOHYANG R2 ORDISOIH609 RESISTOR FIXED CARBON FILM 1 5 OM 1 2 W 5 007 52 SMART CHOHYANG R48 ORDIO006603 RESISTOR FIXED CARBON FILM 100 OFM 1 4 W 5 00 52 SMART CHOHYANG ORH2200L 622 RESISTOR METAL GLAZEDICHPI 220 ON V8 W 202 5 007 D RON RIO 622 RESISTOR METAL GLAZEDICHPI 4 7K OHM 1 8 202 5 00 D ROM He R44 PARIE ORHIOOZL 622 RESISTOR METAL GLAZEDICHPI 10K OHM 1 8 W 2012 5 00 D ROHM R46 ORJO332EG72 RESISTOR FIXED CARBON FILM 33 OM 1 8 W 57 202 R TP ROH 5 09010016609 FESISTOR FIXED CARBON FILM IK OFM 1 4 W 5 007 2 SMART CHOHYANG FB ORHIOOIL622 RESISTOR METAL GLAZEDICHIPI IK OM 178 W 2012 5 00 D ROM R8 s R R64 9 ORH200IL622 RESISTOR METAL GLAZEDICHIP 2K OHM 1 8 W 2012 5 00 D ROHM 08020016609 FESISTOR FIXED CARBON FILM 2K OFM 1 4 W 5 007 52 SMART CHOHYANG R40 R49 RSI R52 R56 ORH3300L62
41. LG REFRIGERATOR CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PREC AUTIONS IN THIS MANUAL Models LRDN22734SB LRDN22734ST LRDN22734TT LRDN22734WW CONTENTS SAFETY PRECAUTIONS ni nnenanmnnnennnnennnnennnnenenennnenenennnnennennennnnnenaneenenneenenenneannanenannanee 2 SPECIFICATIONS EET 3 PARTS IDENTIFICATION m M H n 4 7 lo EY RCE e e ER RS 8 9 Sat Mn ne nn EE A toast tn tn 8 DOOR SWITCH Saisie sien eae e tices Rene tates ne Re Ne 8 sen ake nn ital tees ellen ee suits Ne Sil tons 9 DEFROST GONTROE ASSEMBDLY n den rt erat ns e o duo e edit tb ined 9 BAM Pages Secchi 9 CONTROL BOX REFRIGERATOR i intend 9 MUETEDUGT ea deinen aiu donauit 9 10 11 COMPRESSOR ta det ie e b Ct d cei det en nn ti c 10 9 ui ERE Debet ah denm CE b eb e b e e lt to Code t 10 OLP OVERLOAD PROTEGTOR 5 sistent edit efe rece D la cedet eae 11 TOREMOVE THE COVER cedet cu cube i Hsec eee i a cie eo d dete ie Ec 11 CIRCUIT DIAGRAM m
42. NS CONNECTOR CIRC WAFER YEON HO CONI 5530091060 CONNECTOR CIRC WAFER YW3O6 YEONHO 3 90MM AV YEON HO CZ 6630091068 CONNECTOR CIRC WAFER 96 YEONHO 5 3 06 AV YEON HO CONS 6630 88007H CONNECTOR WAFER 917787 2 5MM STRAIGHT SN CON4 6630 0 0 CONNECTOR CIRC WAFER 917791 1 2 5 STRAIGHT SN CONS 663088007 CONNECTOR CIRCT WAFER 917790 12 2 5 STRAIGHT SN CONG 6630 B8007C CONNECTOR CIRC WAFER 917782 2 5MM STRAIGHT SN ANP CON7 OISKESSIOOA SANKEN STR 6551 SPIN BK SMPS 2 4PIN FORM SANKEN C2 0172 820240 IC DRAWING TMPB7CK40AN GAPIN SDIP EK KS PJTI MASK 1 TOSHIBA ICI OIZZ BZ024RI OIPMGNEDOIA C TOSHIBA TLP7ZIF EK PHOTO COUPLER TOSHIBA OIKE43I000A KIA431 3 PIN TP KEC 1 4 OIKF 780500 IC KEC KIAZEEPL KEC Ic 20502 LED DRIVER KEC QKE6500308 16 SDIP DRIVE ICG OISTLMIOOIA IC STANDARD LOGIC 20 R TP CONVERT MITSUBISH 1 9 OIKE704200A IC KEC KIA7O42P EK RESET KEC 0110777400 IC TOSHIBA TA7774AP_16 SDIP EK DRIVE IC STEPPING TOSHIBA 01899346000 IC ROM W SOP EK EEPROM ROHM 6920000001 RELAY ALEIEBI2 MATSUSHITA 127 IGA 15 6V NAIS RYZ 692Z0ALZOOIA RELAY ALZIZBI2 NAIS 2
43. PEN seconds 4 Defrosting Heater OFF 5 Every DISPLAY LED ON TEST2 Push Express Freezing 1 COMP OFF Reset if the key and COLDER KEY of 2 Freezer FAN OFF temperature of the Freezer Temp at the 3 STEPPING DAMPER CLOSE Defrosting sensor is same time over 3 seconds 4 Defrosting heater ON 46 F 8 C or more in TEST MODE 1 5 DISPLAY LED 1 3 5 7 ON Reset Push Express Freezing Reset to the previously setting before The compressor will key and COLDER KEY of TEST MODE Start after a 7 minute Freezer Temp at the same delay time over 3 seconds in TEST MODE 2 NOTE LED CHECK MODE When the refrigerator temperature control and the freezer temperature control button at the same time are hold for 1 second or longer every LED on the display turns on at the same time when the button are relesed the previous mode is restored Freezer Fan RPM Variable Check In case the freezer fan is in operation when the WARMER KEY in Refrigerator and Freezer Temp Control are pressed for more than one second at the same time freezer fan RPM changes for example if high speed to normal speed or if normal speed to high speed for 30 seconds After 30 seconds it turns to its original RPM Demonstration MODE 1 When the KEY of refrigerator Temp control or of freezer Temp control is pushed and held over 5 seconds warmest temperature s It converts to Demonstration Mode 2 In this status each LED is rotated with 1 second interval 3 In this
44. POS Do 820 1 2W 13 3 18 625 4 Ho Si v 7 12 2 19 R26 POS Do 820 1 2W 11 1 20 R29 2 D 220 112W d R30 10 i E R64 R32 1 KTC3198 mie 20 CC10 T 99 4 7K 102 __ 9 4 7 Rest Ure 11 KTC3198 ra b 1 190 L 4 7KJ 102 8 2 10 Power Failure Compensation Circuit DISPENSER MODEL OP1 KS nie 2 8 El 45 44 801 2 E A 3 44 bA3 SH CC8 e gt nex 104 T 6 2 rey 43 ERNEUT NOm 5 P42 SCK1 15 csl 22 P41 vig MICOM 36 CON102 CON101 8 3 RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE DETECTED RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR amp BY SENSOR SENSOR DEFROST SENSOR amp ROOM SENSOR 20 C 22 3 KQ 77 15 C 16 9 KQ 60 10 C 13 0 KQ 47 3 KQ 5 C 10 1 KQ 38 4 KQ 0 C 7 8 KQ 30 KQ 5 C 6 2 24 1 KQ 10 C 4 9 19 5 KQ 15 C 3 9 15 9 KQ 20 C 3 1 KQ 13 KQ 25 C 2 5 11 KQ 30 C 2 0 8 9 KQ 40 C 1 4 KQ 6 2 50 C 0 8 KQ 4 3 The resistance of the SENSOR has a 5 common difference Measure the resistance of the SENSOR after leaving it for over 3 minutes in the measuring temperature This delay is necessary due to sensor response speed ap 8 4 TROUBLESHOOTING PROBLEM INDI
45. RC WAFER 917787 1 SPIN 2 5MM STRAIGHT SN CONS 6630 88007 CONNECTOR CIRC WAFER 917784 1 2 5MM STRAIGHT SN ANP CON4 4 15 01ZZJB2023L IC DRAWING TMPB CB846N 42 SDIP BK KS BETTER GOODIMASK TOSHIBA ICI COIZ2 B2022M 16 OIZZJB2022 IC DRAWING TOSHIBA ICI 0172 82022 17 01ZZJB2022 IC DRAWING TOSHIBA 0127 82022 B 19 OIKE78I2008 IC KEC KIA7BIZPI 121 IA KEC KEC IC2 20 OIKE78I200M IC KEC KIA78IZPI 3DIP BK 12V IA REFORM KEC 2 7 IC KEC KIA7BSOEP PIN KEC 22 IC STANDARD LOGIC M54563FP MITSUBISHI 20 R TP CONVERT MITSUBISH gt 23 010777400 IC TOSHIBA 777 16 SDIP BK STEPPING MOTOR TOSHIBA 106 24 IC KEC KIDGS003AF 1650 BK 7CH DRIVER KEC IC4 25 OIKE704200A IC KEC KIA7042P BK RESET KEC ICS 26 OIRH9346000 IC ROM BR93LCAGRF W SOP BK EEPROM ROHM z 28 6920000001A RELAY ALEISBI2 MATSUSHITA 250VAC 12VDC NO VENTING NAIS RYI 29 6920WRDOIOA RELAY 061 125 YUYU 250VAC 12 0 IA YUYU 30 6920820038 RELAY ALDII2 MATSUSHITA 250VAC I2VDC IA OMRON RY2 RY4 3 6920820094 BJRELAY 0558 14 250 IZVDC OMRON RY5 z 3 z 34 6212J88001B RESONATOR CERAMIC 5150400 MURATA 4MHZ 0 5 TP NONE MURATA OSCI 3570 0001281 35 _6I02W5V006A VARISTOR INRI4D33I ILJIN UL CSA VOE BK ILJIN VAI 3
46. RE SUBJECT TO CHANGE IN DIFFERENT LOCALITIES AND MODEL TYPE B F SENSOR R SENSOR DEF SENSOR R DOOR PERCEPTION S W F DOOR QOS PERCEPTION S W STEEPING CO NI IND WATER VALVE PART ICE SENSOR M ICE MAKER MOTOR o alx m ze gt FE 2 a a M ASSEMBLY ICE MAKER ICE MAKER PART CAPACITOR PART 4 BK OVER LOAD PROTECTOR TN AO EARTH PART COMPRESSOR R LAMPS ICE MAKER CONFIGURATION P T C START OPTION HEATER AND FUSE CONFIGURATION 115 127V 50 60Hz 220240 V 50 60Hz LG COMP EMBRACO COMP EMB 220 240V COMP 115 127V 50 60Hz 220 240V 50 60Hz FIRE gt C E POWER FUSE S W
47. SISTOR BIPOLAR KTC3875 KEC KEC 6210JE8001 FILTERICIRC BFS3510A0 52 SAM FBI 6600RRTOOIZ SWITCH TACT JTPIZBOAG EIL 12V DC IL JP WE 52MM TAPING DAE LEAD DIT J06 JI3 J4 PO JUMP SAM TAPING SNTIZ SWNT DAE LEAD J5 WIRE SAM TP TAPING DAE LEAD OPI 68548500010 JUMP WRE SAM TAPING DAE LEAD OP2 0P3 RI3 RIG 6200 88004 FILTERICIRCI EMC CV940050 TNC LI 6200 88007 FILTERICIRCI UVII 05320 EK 0 5A 32 TNC 12 OLRIOOIMAFO INDUCTOR RADIAL LEAD 10000 207 R 6XI2 5 BULK TNC L3 OFMS00IB621 FUSE FAST BLOW 9000MA 250V 6 3 31 8 CY GL KS SAM JU 6901 FUSE ASSEMBLY KORE PJT 5 SAM JU FUSE HOLDER QFZZ E300IA FUSE DRAWING ZA 250V SLOW BLOW LITTLE FUSE TRIAD SAM JU FUSEI 6908 83002F BUZZER CBEZ2208P DAE YOUNG PIEZO ZKHZ 75DBICHINAI DAE YOUNG BUZZER 4920 83007 HEAT SINK 23 317925 DRIVE IC STR ISBF 0302418 SCREW TITE ST BINDING D3 0 8 0 MSWR3 FZY SAT 162 VWF 0120000 SOLDERTROSIN WIRE FSO 01 20 4911004 SOLDER SOLDERING HISUNG 59333105 FLUX 56 0 825 0 830 KOREA 206 KOKI OCOIOINEOS CAPACITOR FIXED FILM 0 D 100V 10 SAM WHA 87 41 8 5 3 PWB Assembly Display And Parts List Dispenser Mo
48. TAL FILM 26 OHM 1 4 W 1 00 2 SMAR RRI RDI 76 ORJIGZ2E472 RESISTOR FIXED METAL FILM 16 2K OHM 1 4 W 1 007 SMART UH 78 E 79 3035650 FUSE DRAWING 250V SAM JU 80 OTRIOGOOSAC TRANSISTOR KRAIOBMIKRA2206 e 04 BI OTRIOGOOSAF TRANSISTOR 106 05 07 82 OTR3IO80SAA TRANSISTOR KTC3I98 TP Y_ KTCIBISIKEC KEC 83 6908 83002 BUZZER 22208 DAE YOUNG PIEZO 2KHZ 75DBICHINAI DAE YOUNG BUZZER 84 GG00RRTOOIZ SWITCH JTPI28046 12V DC SOMA JL gt 85 6854B5000lA JUMP WIRE O 6MM 52MM TAPING SN 8MM E JI6 86 6854B5000lA JUMP WIRE 0 6MM 52MM TAPING 5 JI 46 J JIO JI4 JI7 J20 87 6854B5000lA JUMP WIRE 0 6MM 52MM TAPING SN I2 5VM J3 88 6854B5000lA JUMP WIRE O 6MM 52MM TAPING 5 12 5 J07 89 6854B5000lA JUMP WIRE 52MM TAPING SN 30 6854R5000IA JUMP WIRE 0 8MM 52MM TAPING SN 91 4920 3003 HEAT SINK 30 25 30 1 12 50 51 52 53 54 55 56 2PIN SCREW 32 SBFO3024l8 SCREW TITE 5 BINDING HEAD D3 0 L8 0 MSWR3 FZY P 102 33 20000 SOLDERIROSIN WIRE RSO 01 20 SUNG 3 94 49111004 SOLDER SOLDERING H63A 2 95 5933305 FLUX S6 0 825 0 830 KOREA F H 206 KOKI 61 9 5 3 PWB Assembly Display And Parts List CON
49. act or shorted Poor cooling performance ped Replace indicated component Compressor runs Check starting Low voltage poorly voltage Advise customer that the Power supply needs to be checked by an electrician Check voltage at Poor or broken or starting devices open contact Check current flowing Shorted in sub coil of Compressor Check rating of OLP Lack of capacity Fan motor Check wiring circuit Wire is open or doesn t run shorted Check Fan Motor Coil is shorted or open Heavy frost buildup on Check current flow in EVAPORATOR the following components Sensor Fuse M Check current flow in the Defrost Heater 16 Replace indicated component Replace gt indicated component Replace Open indicated component Replace Defrost Heater 6 4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY No Cooling s the power cord unplugged from the outlet Plug into the outlet Check if the power switch is set to OFF Set the switch to ON Check if the fuse of the power switch is shorted Replace the fuse Measure the voltage of the power outlet f the voltage is low correct the wiring Cools poorly Check if the unit is placed too close to the wall Place the unit about 4 inches 10 cm from the wall Check if the unit
50. also can detect R 141b in urethane Practice many times before using this type of detector to avoid false readings 19 7 OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER 7 1 OPERATION PRINCIPLE 7 1 1 Operation Principle of IceMaker Power On Start Position Ice Making Adjusts EJECTOR to Start Position with power on Waits until water becomes cold after starting the Mode ice making operation Harvest Mode Park Position Test Mode To operate LINE and SERVICE press and hold the Fill Key for 3 seconds The ice maker will run through 3 stages Harvest Fill Icemaking Runs MOTOR to drop ice from the tray the ICE BIN Performs Ice Making Mode after supplying water by operating the SOLENOID in ICE VALVE With the detect lever checks if the ICE BIN is full o ww ww v wv 1 Turning the Icemaker stop switch off O stops the ice making function 2 Setting the Icemaker switch to OFF and then turning it back on will reset the icemaker control 20 7 2 CONTROL METHOD ACCORDING TO FUNCTIONS 7 2 1 Start Position 1 After POWER OFF or Power Outage check the EJECTOR s position with MICOM initialization to restart 2 How to check if it is in place Check HIGH LOW signals from HALL SENSOR in MICOM PIN 3 Control Method to check if it is in place 1 EJECTOR is in place It is an initialized control so the mode can be changed to ice making control 2 EJECTOR isn t
51. ck up 4 2 PTC STARTER 4 2 1 Composition of PTC Starter 1 PTC Positive Temperature Coefficient is a no contact semiconductor starting device which uses ceramic material consisting of BaTiOs 2 The higher the temperature is the higher the resistance value These features are used as a starting device for the Motor 4 2 2 Role of PTC Starter 1 The PTC is attached to the Sealed Compressor and is used for starting the Motor 2 The compressor is a single phase induction motor Durign the starting operation the PTC allows current flow to both the start winding and main winding 4 2 3 PTC Applied Circuit Diagram e Starting Method for the Motor OVERLOAD PROTECTOR 6 nD 2 COMPRESSOR 5 MOTOR 5 M L1 gt STARTER SEALED TERMINAL Resistance Starter Capacitor Running Figure 12 4 2 4 Motor Restarting and PTC Cooling 1 It requires approximately 5 minutes for the pressure to equalize before the compressor can restart 2 The PTC device generates heat during operation Therefore it must be allowed to cool before the compressor can restart 4 2 5 Relation of PTC Starter and OLP 1 If the compressor attempts to restart before the PTC device is cooled the PTC device will allow current to flow only to the main winding 2 The OLP will open because of the over current condition This same process will continue 3 to 5 times when the compressor attempts to restart un
52. cuum efficiency can be improved are evacuated at the same by operating compressor during time for models above 200 1 evacuation Vacuum EA Use R 134a manifold To protect mixing The rubber pipes for R 12 refrigerant piping exclusively of mineral and will be melted when they are used for ester oils R 134a refrigerant causes of leak Pipe EA Use R 134a manifold To protect R 12 coupler exclusively refrigerant mixing Outlet R 134a manifold exclusively To protect R 12 Socket refrigerant mixing Bc p end a refrigerant mixing 5 Refrigerant EA Use R 134a exclusively Do not mix with Do not weigh the refrigerant at too weighing Weighing allowance 5g R 12 refrigerant hot or too cold an area Note Winter 5g 77 F 25 C is adequate Summer 5g Make Copper charging canister Device filling refrigerant Socket 2SV Plug 2PV R 134a Note Do not burn O ring bushing during welding 6 Drier Use R 134a exclusively for To remove the replacement R 134a refrigerator moisture from Replace drier whenever repairing pipe inside refrigerator cycle piping 7 Leak check Do not use soapy water for Defect in Check for an oil leak at the refrigerant check It may be sucked into the pipe by a vacuum refrigerant leak area leak area Use an electronic leak detector if an oil leak is not found The electronic leak detector is very sensitive to halogen gas in the air It
53. d MOISTURE Cooling operation Flowing sound of refrigerant Lower than Cooling operation restarts CLOG stops periodically is not heard and frost melts ambient when heating the inlet of the temperature capillary tube COMP Freezer and Low flowing sound of A little higher Low pressure at high side CO RESSION Refrigerator refrigerant is heard and ambient of compressor due to low 70 m don t cool frost forms in inlet only temperature refrigerant level 2 D COMP compressing Flowing sound of refrigerant Equal to ambient No pressure the high an RESSION operation is not heard and there is temperature pressure part of the Z no frost compressor V Leakage Detection e Observe the discharging point of the refrigerant which may be in the oil discharging part of the compressor and in a hole in the evaporator Check if compressor runs YES Frost formed normally Check if frost Check if oil gt forms in gt leaks Evaporator or frost forms inlet only Normal amount Observe the discharged amount of Refrigerant None or too much Moisture Clog Faulty Compressor Inject refrigerant in compressor and check cooling operation Y Check Compressor Clogged by dust 18 Frost formed normally 1 YES Y Gas leakag
54. d impurities Check HEATER PLATE resistance 3 If ice remains after DEFROSTING Make sure that DEFROST Connection is poor Reassemble the SENSOR is connected DEFROST SENSOR Make sure that FREEZER DOOR does not close Reassemble DOOR REFRIGERATOR DOOR is closed properly Replace GASKET 39 8 5 MAIN PWB ASSEMBLY AND PARTS LIST 8 5 1 Main PWB Assembly edi um Wi oe cones 2 foooo00vol flo 0000000000 EE LEE 1 E et gt R40 o Aw o RDI o o om RFI o eo JG 00285 PT LE Q 4 16 Less gt 1 0 2 40 8 5 2 Replacement Parts List DESCRIPTION SPEC MAKER REMARK 687058087 D PIBIPCBI KS PJT BEST DOO SAN 1 6 6170 62012 TRANSFORMER SMPSI COIL 1 KS PJT_220 240V SAM IL TRANS 6170820128 TRANSFORMER SMPSI COIL 1 KS PJT 100 127V SAM IL TRA
55. del 102 L101 40 L106 Or A B L102 6 A A 1104 Or Or 5 103 5102 5101 NOS 5 59107 59105 59104 SEGIOI SEG102 505 P NLI DESCRIPTION SPEC MAKER REMARK 1 6870 088090 PWBCPCB gt KS PJT DISPENSER DISPLAY DOO SAN a 3 6630JB8005D WAFER SMAW250 11 YEON HO CON101 4 6630JB8004U SMAW250 06 CON102 5 6600JB8005A SWITCH TACT 1105 YUNG SW102 105 6 6600RRTOO2K JTP12304 JEIL 12V DC SOMA JEIL 7 6600JB80044 TACT S W PT 1109R YUNG IN SW101 SW107 8 TACT S W PT 1109G YUNG IN 5 106 9 6327JB8001A DISPLAY LED ASSEMBLY LN4023 13EWRS GREEN 2 1V 1 7MCD LEDTECH SEGI SEG2 10 ODLLEQOS9AA LED LT8323 41 BCN 21 D3 TP GREEN L102 105 11 ODD414809AA DIODE SWITCHING 1N4148 26MM PYUNG CHANG 0107 113 12 000400400 1N4004 DELTA D101 106 13 6854 50001 JUMP WIRE 0 6 52MM TP TAPING 5 lt 10 2 J01 06 J08 13 14 9VWF0120000 SOLDERCROSIN WIRE RSO D1 20 HEE SUNG 15 49111004 SOLDER SOLDERING H63A 16 59333105 FLUX SG 0 825 0 830 KOREA F H 206 OKI Best Model 102 L107 B B A 5 B A 94 SW103 59102 mE tg
56. depending on the water control Switch setting as 3 8 sec well as the water pressure of the connected water line LLL j 4 9 sec 5 10 sec NOTE Below is example used by another vendor explanation of what is taking place Feeler Arm Drops Motor On Heater Heater Off thru detection of Hall IC Motor On Heater Ice Dumps Water Valve Dn 6 10sec Motor On Heater Off Ejector Park Start Position Detection zone for Park position Motor On Heater Un Clockwise e Rotation 211 40sec c 76 Feeler Arm Rises Ejector stalls on Ice Motor On Heater Un 5 to 2min Motor On Heater On 22 7 2 5 Function TEST 1 This is a compulsory operation for TEST SVC cleaning etc It is operated by pressing the water supply control KEY for 3 seconds 2 It operates in the Ice Making mode but not in the Ice Removing mode or water supply process If there is an ERROR it can only be checked in the TEST mode 3 If the water supply control KEY is pressed for 3 seconds in the Ice Making mode no matter what condition the Ice Making tray is in the Ice Removing operation starts immediately Water is not yet frozen so water is poured instead of ice If the control doesn t operate normally in the TEST mode check and repair as needed 4 After water is supplied the normal CYCLE is followed ice making Harvest
57. e Find the leak and repair it General Control of Refrigerating Cycle NO ITEMS UNIT STANDARDS PURPOSES REMARKS 1 Pipe and Min Pipe within 1 hour To protect The opening time should be reduced piping system Comp within 10 minutes moisture to a half of the standards during rain opening time Drier within 20 minutes penetration and rainy seasons the penetration of water into the pipe is dangerous 2 Welding Nitrogen Weld under Nitrogen To protect oxide Refer to repair note in each part pressure atmosphere scale formation R 134a refrigerant is more pressure susceptible to leaks than R 12 and 0 1 0 2 kg cm requires more care during welding Do not apply force to pipes before and after welding to protect pipe from cracking 3 Ne sealed Confirm Confirm the sound of To protect In case of evaporator parts if it doesn t parts leak pressure relief when moisture make sound when removing rubber removing the rubber cap penetration cap blow dry air or N2 gas for more Sound usable than 1 min and than use the parts No sound not usable 4 Ref ge Evacuation Min More than 40 minutes To remove moisture ration time Cycle eee set tac D Hn o a es ed ne Vacuum Torr Below 0 03 ref Note Only applicable to the model degree equipped with reverse flow protect plate Vacuum EA High and low pressure sides Va
58. e gap There is abnormal noise s the unit positioned in a firm and even place Are any unnecessary objects placed in the back side of the unit Check if the Drip Tray is not firmly fixed Check if the cover of the compressor enclosure in the lower front side is taken out Adjust the Leveling Screw and position the refrigerator in a firm place Remove the objects Fix the Drip Tray firmly in the original position Place the cover in its original position Door does not close well Check if the door gasket is dirty with an item like juice 15 the refrigerator level s there too much food in the refrigerator Clean the door gasket Position in the firm place and level the Leveling Screw Make sure food stored in shelves does not prevent the door from closing Ice and foods smell unpleasant Check if the inside of the unit is dirty Are foods with a strong odor unwrapped The unit smells of plastic Clean the inside of the unit Wrap foods that have a strong odor New products smell of plastic but this will go away after 1 2 weeks e Other possible problems the freezer Check the refrigeration system Check the Thermistor Check if frost forms in Not x defrosting y of the defrosting circuit The system Perform sealed gt is faulty system repair The operation of Replace the m
59. emove an upper and lower Cap by using a flat screwdriver and loosen 3 screws Figure 11 2 Disconnect the lead wire on the bottom position Figure 11 4 ADJUSTMENT 4 1 COMPRESSOR 4 1 1 Role The compressor intakes low temperature and low pressure gas from the evaporator of the refrigerator and compresses this gas to high temperature and high pressure gas It then delivers the gas to the condenser 4 1 2 Composition The compressor includes overload protection The PTC starter and OLP overload protector are attached to the outside of the compressor Since the compressor is manufactured to tolerances of 1 micron and is hermetically sealed in a dust and moisture free environment use extreme caution when repairing it 4 1 3 Note for Usage 1 Be careful not to allow over voltage and over current 2 If compressor is dropped or handled carelessly poor operation and noise may result 3 Use proper electric components appropriate to the Particular Compressor in your product 4 Keep Compressor dry If the Compressor gets wet in the rain or a damp environment and rust forms in the pin of the Hermetic Terminal poor operation and contact may result 5 When replacing the Compressor be careful that dust humidity and soldering flux don t contaminate the inside of the compressor Dust humidity and solder flux contaminate the cylinder and may cause noise improper operation or even cause it to lo
60. er Door Rack Tilting on some models NOTE This guide covers several different models The refrigerator you have purchased may have some or all of the items listed below The locations of the features shown below may not match your model Digital Sensor Control Refrigerator Light Shelves D Snack Pan Optibin Crisper Keeps fruits and vegetable fresh and crisp Q Triple Twist Ice Tray Bin Q wie Durabase Divider D Dairy Bin Q Design A Door Egg Box Refrigerator Door Rack Freezer Light Q wie Basket Q Freezer Wire Door Rack NOTE This guide covers several different models The refrigerator you have purchased may have some or all of the items listed below The locations of the features shown below may not match your model Digital Sensor Control o Refrigerator Light Shelves Q snack Pan Optibin Crisper Keeps fruits and vegetable fresh and crisp Q Ice Trays Q9 Ice Bin Q wie Durabase o Dairy Bin o Design A Door Freezer Shelf Refrigerator Door Rack Q Freezer Light
61. fan same time over 3 3 STEPPING DAMPER OPEN seconds 4 Defrosting Heater OFF 5 Every DISPLAY LED ON TEST2 Push Express Freezing 1 COMP OFF Reset if the key and COLDER KEY of 2 Freezer FAN OFF temperature of the Freezer Temp at the 3 STEPPING DAMPER CLOSE Defrosting sensor same time over 3 seconds 4 Defrosting heater ON is 46 F 8 C or more in TEST MODE 1 5 DISPLAY LED shows 222 Reset Push Express Freezing Reset to the previously setting before The compressor will key and COLDER KEY of TEST MODE Start after a 7 minute Freezer Temp at the same delay time over 3 seconds in TEST MODE 2 NOTE LED CHECK MODE When the WARMER button in the refrigerator temperature control and the WARMER button in the freezer temperature control are pushed and held for 1 second or longer every LED on the display turns on at the same time When the buttons are released the previous mode is restored Freezer Fan RPM Variable Check In case the freezer fan is in operation when the WARMER KEY in Refrigerator and Freezer Temp Control are pressed for more than one second at the same time freezer fan RPM changes for example if high speed to normal speed or if normal speed to high speed for 30 seconds After 30 seconds it turns to its original RPM Demostration MODE 1 When the WARMER KEY of refrigerator Temp control or of freezer Temp control in the the warmest temperature s status are pushed and held for 3 seconds or longer It con
62. ge Up Up 4 5 C 4 C 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 56kQ Down Down Down Down Down Down Down Down Down Change Up 4 5 C 4 C 3 5 C 92 2 5 C 2 C 1 5 C 1 C 0 5 C No 180kQ Down Down Down Down Down Down Down Down Down Down Change NOTE This circuit is designed to input the necessary temperature compensation values into the MICOM This adjusts the refrigerator temperature which is different in each model 35 8 2 9 Key Button Input amp Display Light On Circuit The circuit shown above determines whether a function control key on the operation display is pushed It also turns on the corresponding function indication LED LED Module SEVEN SEGMENT DISPLAY SEVEN SEGMENT DISPLAY MODULE The drive type is the scan type D IC9 N M54563FP 2 P21 27 3 gt 18 4 P20 25 51 sp 5 P17 24 5 gt 16 ie P16 23 6 gt 15 7 P15 22 7 gt 14 P13 20 8 gt 13 5 2 1 6 1 CONS g KID65003AP RI9 P33 Do 820 1 2W l 0 12 KID6SOB3AF 18 abi ais R20 1 P11 7 De 820 1 2W 1 7 14 R21 i 2 16 6 15 22 7 Do 820 1 2W 57 15 5 16 R23 820 1 2W 14 4 17 R24
63. gt p15 22 np he Le _ s Bite 1 p13120 2 pe 9 6 je le 888 3 IC6 CONS CON10f g 4 M SEGT ET pos SEG2 me P33 Do On 1 11 4 110 18 2 R206 m De 2 2 14 P10 Do 31 16 hs P07 Do 4 3 15 5 16 R29 H gt 5 4 4 14 4 17 5 De Sun 6 13 3 18 s S vm L M Au Jo 12 al Ro he Rate A Do a jej M uo Eo ke 8 y z mo 009 1 148 3 ono om CIN CUT REFRIGERATOR FREEZER M id 5 Zo am TEMP CONTROL aad Eos TEMP CONTROL bare hs LOCK COLD WARM COLD EXPRESS 2 FREEZING ons NE 10 T cw FILTER 102 d iw 8 R56 P77 13 corse 2 REFRIGERATOR DOOR SWITCH 4 CONG R36 16 2KF p64160 2L eze cci L E7 FREEZER SENSOR 225 RRI A 11 61 gt R37e 26 1KF FES REFRIGERATOR SENSOR ZT m 9 62 R38 26 1KF P66 T A Cro DEFROST SENSOR 225 7 2 ye M Om 63 2 67 1 26 6 FREEZER DOOR SWITCH 25 ps 5 916 7774 co 1 ji x Imo Imo 0 E 2 STEPPING 1 10KJ F 10K F 10K gl be B MOTOR P70 3 e 457 Ho 4158 72 12 13 CON7 1 a P31 4 69 3 m P30 t 2 e 270 1 m 44 9 DESCRIPTION OF FUNCTION amp CIRCUIT OF MI
64. in place A If EJECTOR is back in place within 2 minutes with the motor on it is being initialized If not go to Step B B If EJECTOR is back in place within 18 minutes with the heater on to control Heater on its OFF condition it is being initialized If not it is not functioning Repeat Step B with Heater and Motor off 7 2 2 Ice Making Mode 1 Ice Making control refers to the freezing of supplied water in the ice trays Complete ice making operations by measuring the temperature of the Tray with Ice Making SENSOR 2 Ice Making starts after completing fulfilled ice control and initial control 3 The Ice Making function is completed when the sensor reaches 19 F 7 C 60 to 240 minutes after starting 4 If the temperature sensor is defective the ice making function will be completed in 4 hours 7 2 3 Harvest Mode 1 Ice removing control refers to the operation of dropping cubes into the ice bin from the tray when ice making has completed 2 Ice removing control mode 1 Operates Heater for 30 seconds then operate MOTOR 2 After performing Step 1 to control the Heater on its off condition Ice Removal control will be back in place wthin 18 minutes Hall SENSOR sign OV Ice removal is then complete Then change the mode to the water supply control If this control phase fails to start it is not functioning Put the Heater and Motor in the off position Restart every 2 hours Refer to fig 1 NOTE If the motor malfuncti
65. is placed too close to the stove Place the unit away from these heat sources gas cooker or in direct sunlight s the ambient temperature too high or Lower the ambient temperature the room door closed Check if food put in the refrigerator is hot Put in foods after they have cooled down Did you open the door of the unit too often Don t open the door too often and close or check if the door is sealed properly it firmly Check if the Control is set to Warm position Set the control to Recommended position Foods in the s food placed in the cooling air outlet Place foods in the high temperature section Refrigerator front part are frozen Check if the control is set to colder position Set the control to Recommended position 15 the ambient temperature below 41 F 5 C Set the control to Warm position Condensartion or ice forms inside the unit s liquid food sealed Check if food put in the refrigerator is hot Did you open the door of the unit too often or check if the door is sealed properly Seal liquid foods with wrap Put in foods after they have cooled down Don t open the door too often and close it firmly Condensartion forms in the Exterior Case Check if the ambient temperature and humidity of the surrounding air are high s there a gap in the door gasket Wipe moisture with a dry cloth It will disappear in low temperature and humidity Fill up th
66. it out 6 Assembly in reverse order of disassembly 11 5 CIRCUIT DIAGRAM Best Best dispenser DIAGRAMA ELECTRICO CIRCUIT DIAGRAM P T C START OPTION DISPENSER PART WATER VALVE 1 PART WATER VALVE 2 PCB ASSEMBLY DIS PART CAPACITOR PART HEATER AND 8 FUSE CONFIGURATION ICE MAKER PART CON102 6 21516 1 ICE MAKER CONFIGURATION PLUG TYPE YL YL WH AND COMP EARTH PART ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN DIFFERENT LOCALITIES AND MODEL TYPE FAN O R DOOR 8 PERCEPTIO CON6 DEF SENSOR F DOOR PERCEPTION S W MOTOR PUMP S W LED SER PART POWER SUPPLY nc com 1 2 CAPACITOR PART WATER VALVES WATER VALVE2 WATER VALVET PART RC FILTER WATER VALVE2 PART OVER LOAD PROTECTOR
67. it wire on each sensor Fail f defrost TREE 3 us 89905 Cut or short circuit wire Snapping of defrost heater Fail defrost When defrost sensor or Temperature fuse pull 4 aie arene E doesn t reach 8 C within 2 out of Connector indicated moce hours after starting defrost minimum 2 Hours after failure occurs Failure of BLDC If there is no fan motor Poor motor hooking to 5 FAN MOTOR at signal For more than Wires of fan contact of freezing Ed FECE 65sec in Operation fan structures to fan snapping compartment motor or short circuit of Lead wire 27 8 1 14 TEST Mode 1 The Test mode allows checking the PCB and the function of the product as well as finding out the defective part in case of an error The test mode is operated by pressing two buttons at Display panel While in the test mode the function control button is not recognized but the recognition tone beep sounds After exiting the test mode be sure to reset by unplugging and then plugging in the appliance If an error such as a sensor failure is detected while in the test mode the test mode is cleared and the error code is displayed ak 6 While an error code is displayed the test mode will not be activated MODE MANIPULATION CONTENTS REMARKS TEST1 Push Express Freezing 1 Continuous operation of the key and COLDER KEY of COMPRESSOR Freezer Temp at the 2 Continuous operation of the freezer
68. oid heat damage caused by the lamp it is turned off automatically when the refrigerator door is open for more than 7 minutes 8 1 7 Alarm for Open Door 1 This feature sounds a buzzer when the freezer or refrigerator door is not closed within 1 minute after it is opened 2 One minute after the door is opened the buzzer sounds three times each for 1 2 seconds These tones repeat every 30 seconds 3 The alarm is cancelled when the freezer or the refrigerator is closed while the buzzer sounds Freezer Door or Refrigerator Door Closed Closed 3 Times 3 Times 3 Times 3 Times Buzzer gt 4 gt lt 80 sec 30 sec 30 sec Within 1 min 1 min 25 8 1 8 Buzzer Sound When the button on the front Display is pushed a Ding Dong sound is produced Refer to the Buzzer Circuit 8 2 4 No 3 8 1 9 Defrosting removing frost 1 Defrosting starts each time the COMPRESSOR running time reaches 7 hours 2 For initial power on or for restoring power defrosting starts when the compressor running time reaches 4 hours 3 Defrosting stops if the sensor temperature reaches 46 4 F 8 C or more If the sensor doesn t reach 46 4 F 8 C in 2 hours the defrost mode is malfunctioning Refer to the defect diagnosis function 8 1 13 4 Defrosting won t function if its sensor is defective wires are cut or short circuited 8 1 10 Filter Replacement Indication 1 In 6 months af
69. ons and starts before the detect lever rises MICOM regards the Ice Removing phase as completed Water then starts flowing To prevent this MICOM doesn t switch to water supply mode but restarts the ice removing mode If this happens 3 times the motor is malfunctioning and you should stop the loads Heater Motor Then restart the Ice Removing mode every 2 hours See Step 2 above Heater OFF condition Ice making sensor temperature is 50 F 10 C or more Max 18 minutes After detect LEVER rises on i off 1 1 1 1 1 2ms ha lt Motor on Ice removing i completion point off 110 sec l 1 ole Hall IC n ov lt fig1 Ice removing process gt 21 7 2 4 Fill Park Position 1 When Ice Removing control Normal Ice Removing control Ice Removing control for test has completed and the EJECTOR is in place this control operates the ICE SOLENOID by time check in the compressor enclosure of the refrigerator Then it supplies water to the ice making tray 2 Water supply level is adjustable in levels 1 5 by pressing the water supply control Switch and fill time will be determined by the selected level Water supply amount TABLE STAGE TIME TO SUPPLY INDICATIONS REMARKS 1 6 m 2 Es The water amount will vary
70. plied voltage error Use boosting TRANS SEVEN SEGMENT The connection of Check connection of CONNECTOR connection Reconnect CONNECTOR DISPLAY operates the MAIN PWB CONNECTOR iS poor abnormally CONNECTOR TRANS FUSE is open Replace TRANS COOLING is poor NO COOLING If the COMPRESSOR USE TEST MODE1 COMPRESSOR locked or Replace COMPRESSOR operate forced COOLING blocked If less than 7 minutes pass OLP PTC is poor Replace OLP PTC after compressor shuts off COMPRESSOR RELAY is Replace MAIN PWB don t press the KEY and poor wait THE CONNECTING WIRE Check the connection of the iS poor black wire of the MAIN PWB CONNECTOR 2 If refrigerant is leaking Measure the amount of frost Refrigerant leakage Replace the leaking part and sticking on EVAPORATOR replace any lost refrigerant and the surface temperature of the condenser pipe FREEZER If FAN MOTOR USE TEST MODE1 FAN MOTOR is poor Replace the FAN MOTOR TEMPERATURE is operates forced COOLING incorrect CONNECTING WIRE is poor Certify the MOTOR and the connection of the black wire of the MAIN PWB CONNECTOR 2 IFDEFROSTING Check the amount of frost DEFROSTING is poor See DEFROSTING is normal sticking on the EVAPORATOR is poor If SENSOR Check the resistance SENSOR RESISTANCE is Replace SENSOR is normal of the Refrigerator poor SENSOR Door Line contact Check the seal when the door is closed Door liner damaged
71. properly Replace GASKET 59 9 5 MAIN PWB ASSEMBLY AND PARTS LIST 9 5 1 Main PWB Assembly m M 4000 14 YOLOW 415 II STICKER gt 8 08 19 J20 60 9 5 2 Replacement Parts List No P NO DESCRIPTION SPEC MAKER REMARK 6870JB8089A C PWBIPCB KS PJT GOOD DOO SAN 11 6 2 E 3 6170 82002 TRANSFORMER LOW VOLTAGE 240 YES GR MICOM ONE TAB TAE SUNG TRANS 4 6170 82002M TRANSFORMER LOW VOLTAGE 260V_I5V_YES GR MICOM ONE TAB TAE SUNG TRANS 5 6170820028 TRANSFORMER LOW VOLTAGE 140V 15 YES GR MICOM ONE TAB TAE SUNG TRANS 6 617082002 TRANSFORMER LOW VOLTAGE 15 15 YES GR MICOM ONE TAB TAE SUNG TRANS re 6630409106C CONNECTOR CIRC WAFER YW396 07AV YEONHO 7PIN 3 96 STRAIGHT SN YEON HO CONI 8 6630409106 CONNECTOR CIRC WAFER YW396 09AV YEON HO 10 66304081068 CONNECTOR CIRC WAFER YW396 05AV YEON HO 2 H 6630J880076 CONNECTOR CIRC WAFER 917786 1 2 5MM STRAIGHT SN CONS 12 6630J88007H CONNECTOR CI
72. rks by heating the heater inside the OLP and the OLP protects the Motor by cutting off the current flowing to the Compressor Motor 4 3 2 Role of the OLP 1 The OLP is attached to the Sealed Compressor used for the Refrigerator It prevents the Motor Coil from being started in the Compressor 2 For normal operation of the OLP do not turn the Adjust Screw of the OLP in any way OVERLOAD PROTECTOR cross section Part Customer part No Name number 1 Base phenolic Lot code UL 94 V 0 rated date cod AL ee 2 Movable arm support plated steel veel 3 Stationary contact support part number plated steel Heater support plated steel N Heater resistance alloy Disc thermostatic alloy 2 Movable am spring temper E copper alloy 09 Contact movable silver copper 8 Contact stationary silver on copper Slug plated steel Cover polyester UL 94 V 0 rated Pin connector plated copper alloy To engage 2 33 2 66 mm dia pin Quick connect terminal brass conforms to UL 310 MEMA DC 2 DIN 46344 Electrical characteristics part number Figure 13 4 4 TO REMOVE THE COVER PTC 1 Remove the Cover Back M C 2 Remove the screw on Cover PTC 3 Remove two Housings on upper part of Cover PTC 4 Take out the cover PTC from upper to lower position like 5 Turn 45 in the direction of and take
73. tbite or cause your skin to freeze and stick to the surfaces inside the freezer 10 Disassembly repair and servicing the sealed refrigeration system should be performed only by 6 Prevent water from flowing onto electric elements in the qualified and certified personnel Refrigerant should mechanical parts not be vented into the atmosphere proper recovery 7 Close the top door before opening the bottom door equipment should be used Otherwise you might hit your head when you stand up 1 SPECIFICATIONS 20 cu ft 22 cu ft ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DOOR DESIGN Side Rounded VEGETABLE TRAY Opaque Drawer Type 29 7 8 X 31 3 4 x 67 7 8 WXDXH 20cu ft COMPRESSOR PTC Starting Type DIMENSIONS inches 327 8 X 31 X69 1 2 WxDxH 22041 Dispenser EVAPORATOR Fin Tube Type 32 7 8 x 31 x 68 1 2 WXDXH 22cu ft CONDENSER Wire Condenser 238 4 20cu ft REFRIGERANT R 134a 115 g NET WEIGHT pounds 246 9 22cu ft LUBRICATING OIL Freol 10G 310 cc COOLING SYSTEM Fan Cooling DEFROSTING DEVICE SHEATH HEATER TEMPERATURE CONTROL Micom Control REFRIGERATOR 60 W 2EA LAMP Full Automatic FREEZER 60 W 2EA DEFROSTING SYSTEM Heater Defrost DOOR FINISH Embossed Metal VOM Stainless HANDLE TYPE Bar Al INNER CASE ABS Resin INSULATION Polyurethane Foam 2 PARTS IDENTIFICATION
74. tc are turned on in the following order to prevent noise and parts damage Several parts are started at the same time at initial power on and are turned off together when TEST is completed OPERATING ORDERS Temperature of Defrosting Sensor is 45 C or more POWER in 1 2 second COMP in1 2second Freezer FAN when unit is newly ON ON purchased when moved 5 POWER in 1 2 second Defrosting 10 second Defrosting 5 Temperature of defrosting ON gt heater 5 heater OFF o sensor is lower than 45 C 7 when power cuts SERVICE in1 2second COMP _ in 1 2 second Freezer FAN ON ON Reset to normal operation Total load 1 7 minute COMP in1 2second Freezer from TEST MODE OFF Enn ON ee eee ON 46 9 1 9 Defect Diagnosis Function 1 Automatic diagnosis makes servicing the refrigerator easy 2 When a defect occurs the buttons will not operate but the tones such as ding will sound 3 When the defect CODE removes the sign it returns to normal operation RESET 4 The defect CODE shows on the Refrigerator and Freezer Display REFRIGERATOR TEMP Ne FREEZER TEMP gt aaiaioeiele Apjustr WARMER 4 IS RECOMMENDED COLDER WARMER 415 RECOMMENDED COLDER ADJUST CD Defect code signs Defect code signs ERROR CODE on display panel LED OFF LED ON NO ITEM ERROR CODE CONTENTS REMARKS
75. ter the UNIT refrigerator is power on or after 28 000 seconds of dispenser use the water filter Indicator LED red color will be ON 2 When the water filter indicator LED is illuminated you should change the water filter After this you must press the water filter button for three seconds and you will hear a ding dong sound The LED will be OFF This operation will indicate that the UNIT is reset to its initial conditions so this process is restarted 8 1 11 Power Failure Compensation Function 1 When the UNIT is power off the Fresh Food and Freezer Temperature notches the filter elapsed time for replacement the temperature mode C or F and the dispenser lock mode are saved in the EEPROM 2 When the UNIT is power on the MICOM will read the specified EEPROM addresses to restore the values indicated in the previous paragraph 8 1 12 Electrical Parts Are Turned On Sequentially Electrical parts such as COMP defrosting heater freezer FAN etc are turned on in the following order to prevent noise and parts damage Several parts are started at the same time at initial power on and are turned off together when TEST is completed OPERATING ORDERS Temperature of Defrosting Sensor is 113 F 45 C or POWER in 1 2 second COMP in 1 2 second Freezer more when unit is newly ON purchased when moved 5i E Temperature of defrosting POWER in 1 2 second Defrosting in 10 second Defrosting
76. the refrigerator rises 33 8 F 1 C 2 The temperature compensation for refrigerator compartment is in the following table Revised resist ss 4700 2kQ 5 6kQ 8 2KO 10kO 12kQ 18kO 56kQ 180 fasent resistar No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 3 5 C 4 C 4 5 C 5 C 4700 change Up Up Up Up Up Up Up Up Up Up 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 3 5 C 4 C 4 5 C 2kQ Down Change Up Up Up Up Up Up Up Up Up TC 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 3 5 C 4 C 3 3kQ Down Down Change Up Up Up Up Up Up Up Up 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 3 5 C 5 6kQ Down Down Down Up Up Up Up Up Up Up 2 C 1 5 C 1 C 0 5 No 0 5 C 1 C 1 5 C 2 C 2 5 C 38 C 8 2kQ Down Down Down Down Change Up Up Up Up Up Up Refrigerator 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C RCR 10kQ Down Down Down Down Down Change Up Up Up Up Up 83 C 2 5 C 2 C 1 5 C 1 0 5 C No 0 5 C 1 C 1 5 C 2 C 12kQ Down Down Down Down Down Down Change Up Up Up Up 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C Down Down Down Down Down Down Down Change Up Up Up 4C 3 5 C 3 C 2 5 C 2 1 5 C 1 C 0 5 C No 0 5 C 1 C 33kQ Down Down Down Down Down Down Down Down Chan
77. til the PTC device has cooled The correct OLP must be properly attached to prevent damage to the compressor Parts may appear physically identical but could have different electrical ratings Replace parts by part number and model number Using an incorrect part could result in damage to the product fire injury or possibly death 4 2 6 Note for Using the PTC Starter 1 Be careful not to allow over voltage and over current 2 Do not drop or handle carelessly 3 Keep away from any liquid If liquid such as oil or water enters the PTC PTC materials may fail due to breakdown of their insulating capabilities 4 If the exterior of the PTC is damaged the resistance value may be altered This can cause damage to the compressor and result in a no start or hard to start condition 5 Always use the PTC designed for the compressor and make sure it is properly attached to the compressor Parts may appear physically identical but could have different electrical ratings Replace parts by part number and model number Using an incorrect part could result in damage to the product fire injury or possibly death 10 4 3 OLP OVERLOAD PROTECTOR 4 3 1 Definition of OLP 1 OLP OVERLOAD PROTECTOR is attached to the Compressor and protects the Motor by opening the circuit to the Motor if the temperature rises and activating the bimetal spring in the OLP 2 When high current flows to the Compressor motor the Bimetal wo
78. unction will be canceled 4 To activate these function you need to press the Express Freezing key and the LED will turn ON This function will remain activated for 24 hrs The first three hours the compressor and Freezer Fan will be ON The next 21hours the freezer will be controlled at the lowest temperature After 24 hours or if the Express Freezing key is pressed again the freezer will return to its previous temperature 5 For the first three hours notice the following cases 1 Compressor and freezer fan HIGH RPM continuously operate for three hours 2 If defrost starts during EXPRESS FREEZING EXPRESS FREZZING operates for the rest of time after defrost is completed when EXPRESS FREZZING operation time is less than 90 minutes If EXPRESS FREZZING operates for more than 90minutes the EXPRESS FREZZING will operate for two hours after defrost is completed 3 If EXPRESS FREZZING is pressed during defrost EXPRESS FREZZING LED is on but this function will start seven minutes after defrost is completed and it shall operate for three hours 4 If EXPRESS FREZZING is selected within seven minutes after compressor has stopped the compressor compressor delays seven minutes shall start after the balance of the delay time 5 The fan motor in the freezer compartment rotates at high speed during EXPRESS FREZZING 6 For the rest of 21 hours the freezer will be controlled at the lowest temperature 9 1 4 REFRIGERATOR LAMP AUTO OFF 1 To protect the
79. ure Mode to F C 1 The setting temperature mode can be changed to F C by pressing and holding COLDER key of Freezer and COLDER key of Refrigerator over 1 seconds at the same time 2 The initial setting is F Whenever the mode is changed the LED lights are changed 8 1 3 Dispenser Lock 1 Press and hold the DISPENSER LOCK button for 3 seconds to lock the dispenser 2 When locked the LED is off and the dispenser function is turned off 3 Press and hold the DISPENSER LOCK button again for 3 seconds to unlock the dispenser The LED will be on and the dispenser will function normally 24 8 1 4 CONTROL OF FREEZER FAN MOTOR 1 Freezer fan motor has high and standard speeds 2 High speed is used at power up for express freezing and when refrigerator is overloaded Standard speeds is used for general purposes 3 To improve cooling speed the RPM of the freezer fan motor change from normal speed to high 4 High speed 2700RPM Initial power on or load corresponding operation express freezing Normal speed 2400RPM General working conditions 5 Fan motor stops when refrigerator or freezer door opens 8 1 5 EXPRESS FREEZING 1 The purpose of this function is to intensify the cooling speed of freezer and to increase the amount of ice 2 Whenever selection switch is pressed selection release the LED will turn ON or OFF 3 If there is a power cutage and the refrigerator is power on again EXPRESS FREEZING
80. verts to Demonstration Mode 2 It shows OFF on the display panel 3 In this status all Loads are off Compressor Fan Damper Heater Even is Demonstration Mode the refrigerator Lamp automatic off function warks normally and can be demonstrated 4 Exit the test mode and reset the display by pressing the COLDER and WARMER buttons 28 8 2 PCB FUNCTION 8 2 1 Power Circuit BD1 D3SBA60 CM2 470nF 275VAC le 71 RI 150KJ 1W 220 4240 1001 MICOM CON 1 VAI POWER 3 1 140331 VDD Varef Vss Vass 26 TEST The secondary part of the TRANSFORMER is composed of the power supply for the display the BLDC FAN Motor drive 15 5 V the relay drive 12 Vdc and the MICOM and IC 5 Vdc The voltage for each part is as follows PART VA 1 4 5 VOLTAGE 115 Vac 12 Vdc 15 5 Vdc 5V VA1 is a part for preventing over voltage and noise When 385V or higher power is applied the inside elements are short circuited and broken resulting in blowout of the fuse in order to protect the elements of the secondary part of the TRANSFORMER 29 8 2 2 Oscillation Circuit 30 rg XIN 5750400 1H 31

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