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1. eee MAKER PAR ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN DIFFERENT LOCALITIES AND MODEL TYPE PWB PCB ASSEMBLY DISPLAY E E RO PR 1 121314 a cc E F FAN C FAN S z a E WH GY PR BK BL Uco b RD PR BNI BI 112 13 4 15 6 21314 2 3141516 7 CON4 CONS CON7 CONS 2 F SENSOR zm R SENSOR zm 7 go DEF SENSOR PWB PCB ASSEMBLY MAIN 6 P a E 9 5 Tx F DOOR S W 4 RD 2 s 2 8 MEN POWER 9 8 7 6 5 4 3 2 716 5 413 2 514 3 2 BL Y WH BN CON3 T9 BL BN YL BL WH PK RD BN BL BN N dl L GN YL IGN K WR CAPACITOR PART B BR E Neq iad ea d 59773 8 PK ui a me 2 c RO m Qai ii oc Ca 9 3990 z 5 1 ao 1 H Lo a 8 _ 1 L as 5 Mg im eS ml 88 BEE 2 wee EIS D s B z N ur 4 50 E E ZEE Y l l BL Bj BL BL alas B dice amp ug PLUG MAKER PART CAPACITOR PART PWB ASSEMBLY ICE MAKER WATER VALVE 2 PART AND COMP EARTH PART I 3854JK1007 BK BLACK BN BROWN WHSWHITE
2. F FAN C FAN iz NETA S RSN _ DISPLAY uv D SNR R SNR F SNR 7 CEA EPA ZTN CONG CE12 d ol com CONS E m 820 o Aw o E 0 8 0 2 09 s CE9 08 m OwO OO J09 J15 O O O O O O O 91 68 o eo 829 J10 o O AMv O RRI TRANS T d b rt RO RT 2 o H o RCRI 4A CES J12 R26 01 o o R17 5 R46 i R35 R45 R3 o CCI R34 o 5 E cel m FBI R3 o p IC2 R36 o B O o oooo oooo ooo gt 9 Qo o o BDI Ri L2 e w E STICKER 2 o y CC o 0 00 6 0 XT s 00 py Li Ed SS RYE RIS RY4 RY3 RY2 O 4rO E 9 5 o o HE Sel 7 I i d ld fry 00 ds
3. 801 D3SBA60 9 6 PWB DIAGRAM ho cet id e B noA 9 6 1 PWB Main Assembly pom s Eo m Ww Lm 2 FUSEI R 2 250 2 5 L Moo 4 i UNA SmH 4A 3 E 162 Sou cn 5 coni STR 9 N 66551 a m 165 5 2 vop POWER D 42 Varef ces ccs D 1 m 21 vss zi J Vass 17 TEST ICE MAKER 5 F RUNNING CAPACITOR o m 9 07 14004 10 13 ox 4 colla OMA 1 j g DEF HEATER FUSE M POS lt or la E GSNB A gt 3 5 OY 97 Fi E s 14 2 poor zi esl a G5NB 1A T 5 o A FR LAMP R i 13 aN pa P03 I DOOR SIW R1 amp R2 G5N 1A wm WM o WATER VALVE 15 2 JIL CON3 5 RY6 G5N 1A 3 18 ur ot Por FRENCH DOOR HEATER 1 osct iE Lem CSTSOADOMGO3 sei a 20 xoyr TEMPCOMPENSATION REPLACING RCR1 COLD STORAGE ROOM 1 RESET ici haa TEMP COMPENSATION NOTE os e 2 104 180KJ 425 C m Tn WARMER 56K 42 C 15 C 18KJ Mc ke 12KJ
4. Observation value is 115V 60Hz 6 8 30 Separate PTC Starter from Compressor and measure resistance between No 5 and 6 of PTC Starter with a Tester Figure 19 The resistance value is short or open Shows continuity Separate OLP from Compressor and check resistance value between two terminals of OLP with a Tester Figure 20 Check another electric component Replace OLP Figure 20 12 Replace PTC Starter 6 3 OTHER ELECTRICAL COMPONENTS Not cooling at all Compressor doesn t run gt Poor cooling performance Check for open short or incorrect resistance readings in the following components a Starting devices 3 Short open or broken Poor contact or shorted b OLP c Compressor coil Coil open or shorted d Wiring harness Poor contact E Replace or shorted indicated component Compressor runs poorly Check starting Low voltage Advise customer that the Power supply needs to be checked by an electrician voltage Fan motor doesn t run Heavy frost buildup on EVAPORATOR Check voltage at Poor or broken or Replace starting device
5. gt 2 o o N 5 Ce lt e 00 CON O O O O O N L L N COMP FD HIR VALVE I VALVE II R LAMP F LAMP DEF HTR C2 36 9 5 2 Replacement Parts List z 2 3 Ed amp P NO DESCRIPTION SPEC MAKER REMARK 1 6870J88203A PWB PCB BEST BRAVO PJT DOO SAN 16 2 61701820128 TRANSFORMER SMPS COIL 2 9MHI20W SAM IL TRANS 6170820120 TRANSFORMER SMPS COIL TRANS 4 6630 091060 CONNECTOR CIRC WAFER YW396 09AV YEON HO 5 6630AQ9106E CONNECTOR CIRC WAFER YW396 07AV YEON HO CON2 6 6630AQ9106B CONNECTOR CIRC WAFER YW396 05AV YEON CON3 6630088004E CONNECTOR CIRC WAFER SMW250 YEONHO 6P 2 5MM STRAIGHT SN YEON HO CON4 8 66301880041 CONNECTOR CIRC WAFER SMW250 12P 2 5MM STRAIGHT SN 9 0188004 CONNECTOR REWER SMW250 YEONHO 4P 2 5MM STRAIGHT SN FEON ho coni 10 6630JB8004F CONNECTOR CIRC WAFER SMW250 YEONHO 2 5 STRAIGHT SN YEON HO 7 OIZZJB2054V IC DRAWING TMP87C846N 42P SDIP BK MASK BRAVO33 PJT BEST BETTER TOSHIBA 12 018 635100 IC POWER MANAGEMENT STR G6351 SPIN SMPS 2 4PIN FORM SANKEN 1C2 13 IC POWER MANAGEMENT PS2561L1 1 V NEC 4P DIP BK TLP721F NEC 103 14 OIKE431000A ICKEC 3PINTP KEC Ici 15 OIKE780500Z IC LINEAR KIA7805PI3DIP 5V REFORM KEC 1C5 16 01 6500308 ICKEC KID65003AP 16P SDIP BK DRIVE IC KEC 1C6
6. pressure in the high om RESSION operation is not heard and there is temperature pressure part of the 2 no frost compressor 15 6 5 1 SEALED SYSTEM DIAGNOSIS Not Cooling Complaint All components operating No airflow problems Not frosted up as a defrost problem problem has been isolated to sealed system area Frost Partial Pattern Equalization Test Equalization Test Very Fast Very Slow Very Slow Fast Very Fast Inefficient Compressor Complete Restriction Partial Restriction Condenser Cap Tube Temperature Sound Hotter than Normal Room Temperature None to Weak Air Low Side Loss of Change Leak Compressor Not Pumping Trace of Oil No Undercharge The equalization test is trying to restart a compressor using a start kit after it has been operating 16 7 OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER 7 1 OPERATION PRINCIPLE 7 1 1 Operation Principle of Icemaker Power On 1 Start Position Adjusts Ejector to Start Position with power on Waits until water becomes cold after starting the Icemaking operation Icemaking d Runs MOTOR to drop ice from the tray into the ICE BIN Performs Icemaking Mode after supplying water by operating the SOLENOID in ICE VALVE Park Position With the detect lever checks if the ICE BIN is full To operate LINE and SERVICE press and hold the Cub
7. 2 223 m 4 26 a e 5 e RT SENSOR cce p BN J 6 7 rte 36 Ea A 8 co T CONG 1 H1 2 2 m gt 8 Rig ce 3 eo Ege 201 2 a 104 5 6V 0 5W co R18 e 39 is 4 4 ES e EV 11 EXPLODED VIEW CASE PARTS 2 Wa NA CAUTION Use the number to order not the position number 41 EV 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 43 EV DOOR PARTS CAUTION Use the part number to order part not the position number 44 EV WATER 6 ICEMAKER PARTS CAUTION Use the part number to order part not the position number 45 LG Electronics Inc April 2009
8. RD RED BO BRIGHT ORANGE YL YELLOW GN GREEN BL BLUE GY GREY PRsPURPLE SB SKY BLUE 10 6 TROUBLESHOOTING 6 1 COMPRESSOR AND ELECTRIC COMPONENTS Power Source Rated Voltage 10 Remove PTC Starter from Compressor and measure voltage between Terminal C of Compressor and Terminal 5 or 6 of PTC YES OLP disconnected No Voltage Replace OLP Check connection condition Applied voltage isn t in acceptable range 115V 10 Advise customer that power supply needs to b checked by an electrician gt Check ans The range of resistance is be resistance of between M C S C and Motor M S in Motor Open or short Replace Compressor Compressor Compressor Check Check resistance of resistance of two terminals in Reference 12 PTC Starter PTC Starter Check resistance of two terminals in OLP Check OLP Reference 12 Reconnect LI tween 1 50 Check Check the power supply Supply YES Did starting state under load voltage rating compressor Compressor attempting with 10 start to re start after being off for 5 minutes 11 YES Compressor is OK Replace the compressor 6 2 PTC AND OLP Normal operation of Compressor is impossible or poor
9. ET 18 KIA7042 RESET 7 2 104 104 7 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 26 9 2 4 Load Buzzer Drive amp Open Door Detection Circuit 1 Load Drive Condition Check As ale mu ICE MAKER Az E N y ZEE qu DEF HEATER FUSEM 1 ec H e r 54 3 see ae 8 Lp E LAMP 3 A y la i l _ 7 ll MICOM m REFER CON3 E dal EE S L2 0 FRENCH DOOR LOAD TYPE COMP xe LAMP HEATER 1 2 VALVE DEW HEATER Measurement Location IC6 NO 13 NO 14 NO 16 NO 12 NO 15 ON 1V or below Condition OFF 12V 2 Motors driving circuit 2 1 Fan motor driving circuit freezing compartment fan 1 The circuit makes stand
10. the icemaker returns to MICOM control The time needed to supply water resets to the pre test setting 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 50 F or lever is in up position Five seconds after heater starts you can 2 MOTOR confirm that motor is moving a You can confirm Hall IC detection of position 3 HALL IC TRAY E pu Two seconds after detection of initial 4 SOLENOID VALVE position you can confirm that valve is on E HALL IC You can check when the Hall IC is sensing a ful 5 LEVER ice condition If there is a water fill error the fifth LED is not on 6 Reset Return to Status prior to Five seconds after fifth stage is completed TEST MODE the icemaker resets to initial status 7 3 DEFECT DIAGNOSIS FUNCTION 7 3 1 ERROR CODES shown on Ice Maker water supply control panel NO DIVISION INDICATOR PROBLEM REMARKS Note fill times Display switch 1 Normal see previous page None operates properly Icemaking pu Make sure that the wire 2 Sensor Open or shorted wire or sensor on each sensor is malfunction connected Ejector blades have not reached Check Icemaker Kit pu the park position after 18 3 pu HALL IC MOTOR malfunction mues fro
11. 51 08010016609 RESISTOR FIXED CARBON FILM TK OHM 1 4 W 5 52 SMART Rig 52 08010026609 RESISTOR FIXED CARBON FILM 10K OHM 1 4 W 5 52 SMART R29 R35 RCR1 sa 08020010609 RESISTOR FIXED CARBON FILM 2K OHM 1 4 W 5 52 SMART R17 R20 R21 R22 R26 R27 R36 54 08039016609 RESISTOR FIXED CARBON FILM 3 9K OHM 1 4 W5 52 SMART R34 R41 55 08047016609 RESISTOR FIXED CARBON FILM 4 7K OHM 1 4 W 5 52 SMART RIB RISRAD 56 ORD5603H609 RESISTOR FIXED CARBON FILM 560K OHM 1 2 W 5 TAS2 SMART R2 57 08020016609 RESISTOR FIXED CARBON FILM 2K OHM 1 4 W 5 52 SMART R45 58 0RD47016609 RESISTOR FIXED CARBON FILM 4 7K OHM 1 4 W 5 52 SMART R45 ORJZ701L622 RESISTOR METAL GLAZED CHIP 2 7K OHM 1 8 W5 2012 ROHM RH ORH1002L622 RESISTOR METAL GLAZED CHIP TOKOHM 1 8 W 5 2012 ROHM R15 R28 R30 R42 RB 61 ORH1004L622 RESISTOR METAL GLAZED CHIP 1 8 W 5 2012 ROHM R13 62 ORH1001L622 RESISTOR METAL GLAZED CHIP TK OHM 178 W 2012 5 00 D ROHM R7 ORH2001L622 RESISTOR METAL GLAZED CHIP 2K OHM 178 W5 2012 ROHM R23 R25 R38 R39 64 ORH3300L622 RESISTOR METAL GLAZED CHIP 330 OHM 1 8 W 5 2012 ROHM R31 R43 es ORH4701L622 RESISTOR METAL GLAZED CHIP 4 7K OHM 1 8 W5 2012 ROHM R14 R16 R37 66 ORD1000E672 RESISTOR METAL GLAZED CHIP 100 OHM 1 8 W 5 2012 ROHM R5 ORD1501H609 RESISTOR FIXED CARBON FILM 1 5K OHM 1 2 W 5 52 SMART R32 R44 68 ORJOO
12. EXPRESS FREEZING 0 FIS RECOMMENDED Defect code signs FREEZER TEMP N COLDER WARMER REMARKS Inspect Connecting wires on each sensor Snapping of defrost heater or Temperature fuse pull out of connector indicated minimum 2 hours after failure occurs NO ITEM ERROR CODE CONTENTS Failure of freezer 1 Sensor E Cut or short circuit wire Failure of nem 2 Refrigerator sensor E Cut or short circuit wire Failure of defrost wo 3 sensor E Cut or short circuit wire Failure of Room When display check 4 Temperature mode Ern Cut or short circuit wire sensor When defrost sensor 5 Failure of defrost doesn reach 8iC within mode 2 hours after starting defrost Eni of BLDC If there is no fan motor 6 signal for more than 65sec reezing in operation fan motor Compartment Poor motor hooking to wires of fan contact of structures to fan snapping or short circuit of Lead wires Note 1 Room Temperature Sensor is not indicated on the failure indicating part but indicated in checking Display When pressing for more than the warmer key of Refrigerator Temp and the warmer kye of Freezer Temp for more than 1 second LED check function If simultaneously pressing the warmer key of Refrigerator Temp and the warmer key of Freezer Temp for a second all display LED graphics on If releasing the button the LED graphics displays the pre
13. Es CON5 30 R26 2KJ 4 K 5 FREEZER DOOR MICOM 5 77 17 Measurement Freezer Location PIN NO 30 amp PIN NO 37 Refrigerator Door EN m 9 2 5 Temperature Sensor Circuit ari CONS R23x 16 2KF ps0 23 120 ceiz L 2KJ 7 FREEZER SENSOR T Our l 223 ig 5OV 11 R24 iJ ps1 24 10 e _ ccs L 2KJ REFRIGERATOR SENSOR 223 T 8 B 70 rw 9 zd R25 E C 1 62 29 t YN H e L mI DEFROST SENSOR Y 223 T CON 7 P63 26 y oe 5 L ROOM TEMPERATURE SENSOR 223 10uF 50V d 6 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 30iC 50iC SHORT CIRCUITED OPEN Freezer Sensor POINT A Voltage 0 5V 4 5V 0v 5V POINT D Voltage Room Temperature sensor 29 9 2 6 Refrigeration Compartment Stepping Motor Damper Circuit The circuit shown below is the damper circuit to regulate the refrigerator temperature MICOM 9 2 7 Dispenser Input 1 4 IC P
14. Reassemble DOOR REFRIGERATOR DOOR is closed properly Replace GASKET 35 9 5 MAIN PWB ASSEMBLY AND PARTS LIST 9 5 1 Main PWB Assembly N
15. Up Up Up Up Up Up Up Up 0 5 C No 0 5 C 11 15 C 2 C 25 C 3 5 C 4iC 4 5 C 2k Down Change Up Up Up Up Up Up Up Up Up 1jC 0 5 C No 0 5 C 1 5 C 2 2 5 C 3 C 3 5 C 4 3 3k Down Down Change Up Up Up Up Up Up Up Up 1 51 1 C 0 5 C No 05 1 C 15 C 2 C 2 5 C 3 5 C 5 6k Down Down Down Change Up Up Up Up Up Up Up 2iC 1 51 11 0 5 0 5 C 1 C 1 51 21 2 51 3 C 8 2k Down Down Down Down Change Up Up Up Up Up Up Refrigerator 25 C 2 C 1 51 1 C 0 5 C No 0 5 C 1 C 1 51 2iC 2 51 10k Down Down Down Down Down Change Up Up Up Up Up 25 C 2iC 1 51 0 5 C No 0 5 C 1 C 1 51 21 12k Down Down Down Down Down Down Up Up Up Up 3 5 C 2 54 21 1 5 C 1 C 0 5 C No 0 51 11 1 51 18k Down Down Down Down Down Down Down Change Up Up Up 4 3 5 C 2 51 2iC 1 5 C 1 C 0 5 C No 0 5 C 1 C 33k Down Down Down Down Down Down Down Down Up Up 45 4 C 3 5 C 3 C 25 C 1 5 C 11 0 5 C No 0 5 C 56k Down Down Down Down Down Down Down Down Down Change Up 4 5 C 4iC 3 5 C 25 C 21 1 51 1 C 0 5 C No 180k 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
16. 00E672 RESISTOR METAL GLAZED CHIP 1 8 W5 2012 ROHM ORJ2401E472 RESISTOR METAL GLAZED CHIP 24K OHM 1 8 W 1 2012 ROHM RL2 ORJ6800E672 RESISTOR METAL GLAZED CHIP 680 OHM 1 8 W 5 2012 ROHM 08068016609 RESISTOR FIXED CARBON FILM 6 8K OHM 1 4 W 5 52 SMART R4 ORJ9101E472 RESISTOR METAL GLAZED CHIP 9 1K OHM 1 8 W 1 2012 ROHM ORJ1002E472 RESISTOR FIXED METAL FILM 10K OHM 1 8 W 1 00 2012 RTP ROHM RTI 74 0816225409 RESISTOR FIXED METAL FILM 16 2K OHM 1 4 W 1 00 52 SMART 15 0826125409 RESISTOR FIXED METAL FILM 26 1K OHM 1 4 W 1 00 TAS2 SMART RR1RD1 0RS0151J609 RESISTOR FIXED METAL OXIDE FILM 1 5 OHM 1 W 5 00 TA52 SMART ROCP 0RS0101J609 RESISTOR FIXED METAL OXIDE FILM TOHM 1 W5 52 SMART ROCP 78 ORS5602K641 RESISTOR FIXED METAL OXIDE FILM 56K OHM 2 W 5 00 F20 SMART R3 79 08333031609 RESISTOR FIXED METAL OXIDE FILM 330K OHM 1 W 5 00 52 SMART Rt OTR319809AA TRANSISTOR KTC3198 TP Y KTC1815 KEC KEC Q3 05 81 OTRKEO0008A TRANSISTOR BIPOLARS KTB1151 BK TO126 60V 5A KEC 02 04 82 OTRKE80016A TRANSISTOR BIPOLARS 1065 SOT23 50V 100MA KEC 01 83 6200JB8004A FILTER CIRC EMC CV940050 TNC TNC 84 6200JB8007X FILTER CIRC EMC UV11 05320 TNC BK 0 5 320MH TNC 12 85 6210J88001A FILTER CIRC EMC BFS3510A0 SAMWHA 52 BEAD FILTER SAM WHA 6600RRTOO1Z SWITCH TACT JTP1280A6
17. 17 0IKE704200A KIA7042P BK RESET KEC 18 OITO777400A IC DRAWING TA7774AP 16 SDIP BK STEPPING MOTOR TOSHIBA 1C8 19 6920ALZ0018 RELAY ALZ12B12 NAIS 250VAC 16A 12VDC NO VENTING NAIS 20 6920J82003A RELAY OMRON 250VAC 1 5A 12VDC JAPAN OMRON RYSRYS 21 6920JB2003E RELAY G5NB 1A E CHINA OMRON 250VAC 12VDC TANO VENTING OMRON RY24 22 69201820098 RELAY 6558 14 OMRON 250VAC 5A 12VDC NO VENTING OMRON 5 23 24 6212JB8001B RESONATOR CERAMIC CSTS0400MG03 MURATA 4MHZ TP MURATA 0561 25 6102J88001B VARISTOR INR14D621 ILJIN ULIVDE BK 620V LJN VAT 26 6102W5V007A VARISTOR INRT4D331K IL JIN ULICSAIVDE BK TJN VAT 27 ODB360000AA DIODE RECTIFIERS D3SBAG0 BK SHINDENGEN 600V 4A 80A 10UA SHINDENGEN BD1 28 0DD400409AC DIODE 5 RECTIN4004 TP DELTA D7 29 ODR1O7009AA DIODE RECTIFIERS FR107 TP RECTRON 0041 1000V 30A 500 5 5A DELTA D1 D2 D5 D6 D8 D9 30 ODRSAO0O70A DIODE RECTIFIERS RL2 SANKEN BK NON 400V 2A 40A 5ONSEC 100 SANKEN D3 D4 31 0CE105BK638 CAPACITOR FIXED ELECTROLYTIC 1UF KME RG YX 50V 0 2 FM5 TP 5 SAMWHA CE10 32 OCE106EK638 CAPACITOR FIXED ELECTROLYTIC 10UF KMG 50V 20 FMS TP 5 SAM WHA CE6 CE9 33 0CE2278F638 CAPACITOR FIXED ELECTROLYTIC 220UF KME TYPE 16V 20 FM5 5 SAMWHA CE5 34 0CE2278H638 CAPACITOR FIXED ELECTROLYTIC 220UF KME RG 25V 20 FMS TP 5 SAM WHA CE11 CE12 35 is 36 0 47
18. 20 MICOM zl 2 2KJ 30 E 916 7774 5 T 15 A 1 tuF A R28 mas ino da 14 2 STEPPING 31 10KJ 10KJ F10KyJ B MOTOR P10 11 3 33 6 5 457 4 B 12 13 x CON 7 PUMP R21 S S W DE 39 62 9 2 8 Temperature Compensation amp Overcooling Undercooling Compensation circuit 1 Refrigerator Temperature Compensation zh ICI R15 10KJ 10KJ 777 Refrigerator Resistance Temperature Remark RCR Compensation 180 2 4C Compensation by raising the 2 2qC temperature 33 K 1 4C 18 K 1 9C 12K 0 3 10K 0 C Standard Temperature 8 2 K 0 5 C Compensation by lowering the 297 1 050 temperature 33 K 151 2K 2 01 470 2 5 C 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 the refrigerator rises 33 8 F 1j C 2 The temperature compensation for refrigerator compartment is in the following table Revised resistance 470 2k 3 3k 5 6k 8 2k 10k 12k 18k 33k 56k 180k Present resistar No 0 5 C 1 C 1 51 2iC 2 5 C 3 51 4 4 51 5 C 470 change Up Up
19. 22 RESISTOR METAL GLAZED CHIP 2K OHM 1 8 W 2012 5 00 D ROHN RITRIS 2 21 RESISTOR METAL GLAZED CHIP 100 OHM 1 2 W 5 2012 RIERO 1 22 oozrmooresa DIODE ZENERS RLZ OHM RITP LLDS LL 34 500MW 5 6V 20MA ROMH 201 s 23 DIODE SWITCHING RLS4148 ROHM RITP LLDS LL 34 75V 450 2000MA ROHM D108 D112 DIODE SWITCHING IN4149 26 MM PYUNG CHANG DELTA 2 25 63270880014 DISPLAY LED ASSEMBLY LN4023 13EWRS GREEN 21 4 7MCD LEDTECH SEG1 SEG2 4 26 ODLLEOOSSAA LED LT8323 41 BCN 2 1V D3 TP GREEN LEDTECH 1102 1405 27 ooLLEo0s9AA LED LT8323 41 BCN 2 1V D3 TP GREEN 101 407 1 28 69084830020 BUZZER PQ272207PL 20C 2000 SUNWAY PIEZO 2KHZ 8008 CHINA SUNWAY BUZZER a 29 SWICHUET KPT 105A KYUNG IN ditio l 6G00RRTOO2K JTP1230A JEIL 12V DC JEL a ence tact KPTA109R KYUNG IN KPT 11096 KYUNG IN 2g 91 SOLDER SOLDERING SOLDER ROSIN WIRE RSO HUISUNG 59 32 49111004 SOLDER SOLDERING HUISUNG 059 33 58333105 FLUX SG 0 825 0 830 KOREA FH 206 KOKT 38
20. 305 10KJ 4 FACTORY P64 8 2KJ 05 C RCR 56KJ a c 40K 45 C 2KJ at 4704 25 C 1 2 3 4 5 8 14 16 29 30 35 40 41 72 P71 ts P14 7 P11 P60 P61 P62 P67 P10 P12 P13 P16 P20 P63 P15 P77 CEN las ne 220uF core KqC3198 7 i OQ 2 1 R37 7 Ami t3 a cor 3 102 R43 3804 a 08 FRIO7 az imH PR 4 CE12 AD 220uF L ceis FRi07 jum Ta 4 5 1 O 32 Ras 471 pute 2 co 6 T m CONS 23 162KF s L 20 e F SENSOR ERES pM L9 10 L R SENSOR 228 B RDI 9 25 TOC R25 24 CE9 8 L E D SENSOR 223 R27 P is T 30 2KJ cose L 26 6 Q 5 108 9 16 TA7774F ha 15 1 A TuF ds 5 f R28 R29 m idi 18 2 STEPPING 31 10K 10KJ 10KJ 8 E MOTOR 11 3 33 6 34 457 10 12 13 4 CON7 i Ra8 37 Ra9 2KJ ccr L ad 2 R DOOR S W 2 PUMP qs 2 SW 39 R21 aon 3 oe
21. 6 638 CAPACITOR FIXED ELECTROLYTIC 4TUF KME TYPE 50V 20 FM5 TP 5 SAM WHA CE2 37 OCEA76ZV6E0 CAPACITOR FIXED ELECTROLYTIC 47UF HE 450V 20 BULK SNAP IN SAMWHA CE1 38 OCEGB7YHGEO CAPACITOR FIXED ELECTROLYTIC 680UF RX 25V 20 BULK SNAP IN SAM WHA CE3 39 OCEGB7YJ618 CAPACITOR FIXED ELECTROLYTIC 680UF RX 35V 20 TP 5 FL SAM WHA CE4 40 0CK102DK96A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 1NF 2012 50V 80 20 X7R MURATA CC17 CC20 41 0CK1040K949 CAPACITOR FIXED CERAMIC High dielectric 0 1UF D 50V 80 20 F Y5V TA52 SAM CC3 CCA CC8 CC 42 OCK104DK9BA CAPACITOR FIXED CERAMIC High dielectric 0 1UF 2012 50V 80 20 JE MURATA CC5 CC10 0CK22102510 CAPACITOR FIXED CERAMIC High dielectric 220P 2KVK BS SAM WHA CC2 44 0CK2230K049 CAPACITOR FIXED CERAMIC High dielectric 22NF 50V Z F TAS2 SAM WHA 45 OCK223DK96A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 22NF 2012 50V 80 20 X7R MURATA CC8 CC9 CC11 15 CC18 46 0CKA710K519 CAPACITOR FIXED CERAMIC High dielectric 50V B 52 SAM WHA C1 47 0CQ1041N509 CAPACITOR FIXED FILM 0 1UF D 100V 10 PE TP5 SAM WHA CM4 0CK102DK96A CAPACITOR FIXED CERAMIC HIGH DIELECTRIC 1NF 2012 50V 80 220 MURATA C20 48 0CO4732Y430 CAPACITOR FIXED FILM 47000PF S 630V 5 MPE NI R SAM WHA CM3 49 0CQ47418670 CAPACITOR FIXED FILM 0 47UF D 275V 20 NIR SAM WHA 50 OLR1001M4FO INDUCTOR RADIAL LEAD 1000UH 20 R 6X12 5 BULK TNC 13 14
22. 8 P 450 BRAVO 33 TOSHIBA a 4 ostroma IC STANDARD LOGIC M54563FP MITSUBISHI 20 CONVERT MITSUBISHI Ic a 5 IC KEC KID65003AF 1650P BK 7CH DRIVER KEC 165 106 a IC STANDARD LOGIC KIATBLOSF SOT 89 TP REGULATOR KEC 162 1 7 IC STANDARD LOGIC KIATU2AF 50749 TP RESET IC KEC Ic a 8 oistuKeoosa IC STANDARD LOGIC KRC106S SOT 23 TP TRANSISTOR a 3 62126632450 RESONATOR CERAMIC CSTCRAMOOGS3 RO MURATA 4 0MHZ 0 5 TIR SMD MURATA osci a 10 ocEsrevHeDe CAPACITOR FIXED ELECTR ATUF MV 25V 20 RITP SMD SMD SAMHWA CE2 a ocetorvreoc CAPACITORFIXED ELECTR 100UF MV 16V 20 RITP SMD SMD CE1 7 12 ocktoapko4a CAPACITOR FIXED CERAMIC 100NF 2012 50V 80 20 RITP F YSV MURATA CCI CCT 2 13 ocksa CAPACITORFIXED CERAMIC ANF 2012 50 80 20 RITP XTR MURATA CCACCO 1 14 oRHa200 622 RESISTOR METAL GLAZED CHIP 220 OHM 1 8 W 2012 5 00 D ROAM R5 2 15 oRD1001E672 RESISTOR METAL GLAZED CHIP AK OHM 1 8 W 5 2012 RITP R3 16 RESISTOR METAL GLAZED CHIP 2K OHM 4 8 W 5 2012 RTP R2 5 17 oRD4701E672 RESISTOR METAL GLAZED CHIP 4 7K OHM 118 W 5 2012 RITP ROAM R1 RI 21 24 1 18 oRD1004E672 RESISTOR METAL GLAZED CHIP 1M OHM 1 8 W 5 2012 ROAM R6 9 19 0RJ8200H672 RESISTOR METAL GLAZED CHIP 820 OHM 1 2 W 5 2012 R6 R16 2 20 oRH2001L6
23. 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 outage and the refrigerator is powered on again EXPRESS FREEZING will be canceled 4 1o activate this 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 During the first 3 hours 1 Compressor and freezer fan HIGH RPM run continuously 2 If a defrost cycle begins during the first 90 minutes of Express Freezing the Express Freeze cycle will complete its cycle after defrosting has ended If the defrost cycle begins when Express Freeze has run for more than 90 minutes Express Freeze will run for two hours after the 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
24. 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 2 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 Refer to 8 2 4 2 and check 2 If DEFROSTING Check the amount of frost 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 Ch
25. JEIL 12VDC 50MA JEIL swt 87 ODZMR00029A DIODE ZENERS 1N5232B MOTORORA TP 0034 0 5 5 6V 81 DELTA 701 88 103 4J04J06 12 15 10MM 6854850001 JUMP WIRE 0 6MM 52MM TAPING SN DAE ALEAD J13 J14 8MM 89 J01 J02 J05 12 5MM OFZZJB3001A FUSE DRAWING 2A 250V SLOW BLOW LITTELFUSE TRIAD SAM JU KYO YUK FUSE1 oo 1SBFO302418 SCREW TAP TITE S BINDING HEAD 05 0 18 0 MSWR3 FZY HAENG SUNG 91 9 4920J83007A HEAT SINK 23 3 17 25 DRIVE IC STR R S64 65 73 2PIN 1 SCREW 3MM 2 1C2 93 49111004 SOLDER SOLDERING NAHEESUNG METAL BAR SN 63 NA E 94 59333105 FLUX JS 71 KOKI SANE KOREA KSK SG 0 808 0 003 55 SVWFO120000 SOLDER ROSIN WIRE RSO 01 20 37 9 5 3 PWB Assembly Display and parts list A wonk 8 3 P NO DESCRIPTION SPEC MAKER REMARK 1 1 687088199A PWB PCB BRAVO 33 DISPLAY a 2 66304880056 CONNECTOR CIRC WAFER SMAW250 04 YEON HO CONDI 1 3 0228777 1C DRAWING TMP87C409M 28 SOP2
26. LG REFRIGERATOR CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODELS LFC22760 5 SAFETY PRECAUTIONS SPECIFICATIONS ADJUSTMENT COMPRESSOR PTO STARTER OLP OVERLOAD PROTECTOR TO REMOVE THE COVER CIRCUIT DIAGRAM TROUBLESHOOTING COMPRESSOR AND ELECTRIC COMPONENTS AND OLP OTHER ELECTRICAL COMPONENTS SERVICE DIAGNOSIS CHART REFRIGERATION CYCLE OPERATION PRINCIPLE amp REPAIR METHOD OF ICE MAKER DESCRIPTION OF FUNCTION amp CIRCUIT amp CIRCUIT OF MICOM REFRIGERATOR EXPLODED VIEW 8 SERVICE PARTS LIST SAFETYPRECAUTIONS O o NNNNN OO PB WD Pleasereadthefollowinginstructionsbeforeservicingyour refrigerator 1 Checktherefrigeratorforcurrentleakage 2 Topreventelectricshock unplugbeforeservicing 3 Alwayschecklinevoltageandamperage 4 Usestandardelectricalcomponents 5 Don ttouchmetalproductsinthefree
27. NR14D331 100 127 7 Ri FUSE1 150KJ1W 220 4240V 2504 24 82K iW 100 1 7 2 STR G6551 L1 RL2 2AKF 20 240 474 1 100 127 22 7805 104 T 42 E ces ccs 104 21 22 Varef Vss Vass 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 3 4 5 VOLTAGE 115 Vac 12 15 5 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 25 19 05 1 XIN CSTSO400MGO3 l E 2 d 20 XOUT 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 specified replacement parts since calculating time by the IC1 may be changed If changed the OSC1 SPEC will not work oo IC7 32x 1
28. PER CLOSE Defrosting sensor is Same time for 3 seconds 3 Defrosting HEATER ON 8 C or more In TEST MODE 2 OR 4 DISPLAY LED ahows no 3 Push TEST S W Once in TEST MODE 2 Reset Push Express Freezing Reset to the previously setting The compressor will Key and COLDER KEY Before TEST MODE Start after a 7 minute of Freezer Temp at the Delay Same time for 3 seconds In TEST MODE 3 OR Push TEST S W Once in TEST MODE 3 YiabkzOhHeak RPM 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 Display MODE 1 To enter this mode raise either the Refrigerator or Freezer temperature to its highest setting Then press that Warmer Key and hold for about 5 seconds 2 The LED panels will display OFF to indicate that the Compressor Circulating Fan Damper and Defrost Heater are not operating 3 The Open Door Alarm and the Lamp Auto Off feature will work normally and can be demonstrated 4 To reset to normal operation press and hold either Warmer Key for about 5 seconds 24 9 2 PCB FUNCTION 9 2 1 Power Circuit BD1 D3SBA60 E Smh AA E eM CON 25 9 I VA1 POWER INR14D621 220 240 I
29. arm position Set the control to Recommended position Food in the ls food placed in the cooling air outlet Place foods in the high temperature section Refrigerator front part is frozen X Check if the control is set to colder position Set the control to Recommended position ls the ambient temperature below 5i C Set the control to Warm position Condensation or ice forms inside the unit ls liquid food sealed Check if food put in the refrigerator is hot Y 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 Condensation forms in the Exterior Case Check if the ambient temperature and humidity of the surrounding air are high 15 there gap in the door gasket YWipe moisture with a dry cloth It will disappear in low temperature and humidity YFill up the gap There is abnormal noise ls 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 X Remove the objects the Drip Tray firmly in the original position Place the cover in its original positi
30. by power 0 by cutting off power supplied to Iss inside on 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 P72 Poo PWI IC1 m d MICOM 27 part b part part 5V MOTOR OFF 2V or less OV MOTOR ON 13V 15V OV 2V 3V 2 2 Cooling motor driving circuit machine room 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 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 Part b part MOTOR OFF 2V or less OV OV MOTOR ON 13V 15V 330 8 m L4 MICOM Bota R41 112 35 3 9KJ 2 P14 E 0 ny PPG R42 KTC3198 25V 82 R45 INT RI 22 L cca yew ae Nd o 28 3 Open Door Detection Circuit Check CON7 p 37 R39 i CC18 1 2KJ 1 REFRIGERATOR DOOR 223 T 2 SWITCH a 177 1
31. cations of the features shown below may not match your model Digital Sensor Control Refrigerator Light Shelves Temperature Contro l OG chert Fresh Snack Pan Q Can Dispenser O Optibin Crisper Keeps fruits and vegetable fresh and crisper Customcube O Durabase Divider O Filter Inside Bin Deo Box Refrigerator Door Rack Q Freezer Light out Drawer on some models 3 DISASSEMBLY 3 1 DOOR gt Left Door Loosen the cover screw 1 Disconnect door switch wire 2 Loosen hinge bolts 3 Lift off the top hinge 4 Place the door a non scratching surface with the inside up gt Right Door Loosen the cover screw 1 Disconnect door switch wire 2 Disconnect wire harness 5 Loosen hinge bolts 3 Loosen ground screw 6 Lift off the top hinge 4 Place the door on a non scratching surface with the inside up Figure 1 Door Gasket Removal 1 Remove door frame cover Starting at top of cover and working down snap cover out and away from door Frame Cover Handle Figure 2 2 Remove gasket bracket clips There are two clips on each door Start bracket removal near one of the middle clips 1 Pull gasket back to expose gasket bracket clip and door frame 2 Insert a flat tip screwdriver into seam between gasket bracket and door frame and pry back
32. d 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 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 works 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 No Name D Base phenolic UL 94 VO rated 2 Movable arm support plated steel 3 Stat
33. 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 5 REFRIGERATOR LAMP AUTO OFF 1 To protect the risk of lamp heat when Refrigerator door opens for 7 min refrigerator lamp is auto off 20 9 1 6 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 Closed Open Closed Open Closed or Refrigerator 3Times 3 Times 3 Times 3 Times Door Buzzer l gt 4 e gt i 30 30 30sec Within 1 min 1 min 9 1 7 Buzzer Sound When the button on the front Display is pushed a Ding Dong sound is produced 9 1 8 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 reach amp r more If the sensor doesireach 8C in 2 hours the defrost mode is malfunctioning 4 Defrosting woit function if its sensor is defecti
34. e Size button for 3 seconds The icemaking will run through 3 stages Harvest Fill Icemaking Test Mode Y Y vy vy 1 Turning the Icemaker stop switch off O stops the icemaking function 2 Setting the Icemaker switch to OFF and then turning it back on will reset the icemaker control Cube Size button Power On Off Switch 17 7 2 ICE MAKER FUNCTIONS 7 2 1 Ice Making Mode 1 Icemaking refers to the freezing of supplied water in the ice trays Complete freezing is assured by measuring the temperature of the Tray with icemaking SENSOR 2 Icemaking starts after completion of the water fill operation 3 The icemaking function is completed when the sensor reaches 7 C 60 to 240 minutes after starting NOTE After icemaker power is ON the icemaker heater will be on for test for 9 sec 7 2 2 Harvest Mode 1 Harvest Ice removing refers to the operation of dropping ices into the ice bin from the tray when icemaking has completed 2 Harvest mode 1 The Heater is ON for 30 seconds then the motor starts 2 Harvest mode is completed if it reaches start position again while Heater amp Motor are on at the same time A ice bin is full The EJECTOR stops heater off B ice bin is not full The EJECTOR rotates twice to open for ice NOTE If the EJECTOR does not rotate once within 5 minutes in status 2 separate heater control mode starts operating to prevent the EJECTOR from being constrained It
35. eck the seal when the door is closed Door liner damaged Replace door liner 34 PROBLEM INDICATED BY CHECK CHECKING METHOD CAUSE SOLUTION COOLING is poor If REFRIGERATOR 1 FREEZER TEMPERATURE Check is FREEZER Make sure the TEMPERATURE isormal 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 MODES3 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 DEFROSTSENSOR is poor Replace DEFROSTSENSOR HEATER RELAY is poor Replace RY2 of MAIN PWB 2 If DRAIN PIPE is Check DRAIN PIPE DRAIN PIPE is blocked Remove ice and impurities blocked Check HEATER PLATE resistance 3 If ice remains after Make sure that DEFROST Connection is poor Reassemble the DEFROSTING SENSOR is connected DEFROSTSENSOR Make sure that FREEZER DOOR does not close
36. erclockwise 5 Assembly is the reverse of disassembly Replacement bulb must be the same specification as the original Max 60 W2EA Figure 15 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 16 GRILLE ASSEMBLY DEFROST CONTROL ASSEMBLY iia N dy Figure 13 DE Figure 12 3 5 LAMP Figure 14 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 Remove the upper and lower Caps by using a flat screwdriver and remove 2 screws Figure 17 2 Disconnect the lead wire on the bottom position Figure 17 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 i
37. ionary contact support plated steel Customer part number Lot code date code O 330 FBYY Electrical characteristics part number ysical termination part number Heater support plated steel Heater resistance alloy Disc thermostatic alloy Movable arm spring temper copper alloy Contact movable silver on copper Contact stationary silver on copper 40 Slug plated steel Cover polyester UL 94 V 0 rated 42 Pin connector plated copper alloy To engage 2 33 2 66 mm dia pin Figure 18 4 4 TO REMOVE THE COVER 1 Remove the Cover Back M C 2 Disconnect two housing upper side of comp connected in 3 Loosen two screws on comp base 4 Use a L shaped flap tool to pry off the cover 5 Assembly in reverse order of disassembly 5 CIRCUIT DIAGRAM 12 CIRCUIT DIAGRAM
38. is recommended that the user open for ice to return to normal mode 7 2 3 Fill Park Position 1 Once a normal harvest mode has been completed the water solenoid will be activated 2 The amount of water is adjusted by pressing the fill key repeatedly This changes the time allowed for fill as illustrated in the table below Water supply amount table STAGE TIME TO SUPPLY INDICATIONS REMARKS E 1 6 sec E The water amount will vary depending on the water control switch setting as 2 7 sec well as the water pressure of the connected water line 3 8 sec 18 7 2 5 Function TEST 1 This is a compulsory operation for test service cleaning etc It is operated by pressing and holding the Cube Size button for 3 seconds 2 The test works only in the Icemaking Mode It cannot be entered from the Harvest or Fill mode If there is an ERROR it can only be checked in the TEST mode 3 Caution If the test is performed before water in the icemaker is frozen the ejector will pass through the water When the fill mode begins Stage 4 unless the water supply has been shut off added water will overflow into the ice bin If the control Doesnt operate normally in the TEST mode check and repair as needed 4 After water is supplied the normal CYCLE is followed icemaking gt Harvest gt Fill Park Position 5 Five seconds after Stage 5 is completed
39. m start of harvest HEATER RELAY ERROR indicators in table can be checked only in TEST mode 19 9 DESCRIPTION OF FUNCTION 8 CIRCUIT OF 9 1 FUNCTION 9 1 1 Function 1 When the appliance is plugged in it is set to 37F for Refrigerator and O F 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 37 amp 0 REFRIGERATOR TEMP FREEZING F 1 FREEZER TEMP v n rm z UN M COLDER WARMER eS Du 37 FIS RECOMMENDED COLDER WARMER 0 FIS RECOMMENDED ontrol range 3 F 47 Control range amp F 8 0 8 21 13C 9 1 2 How to Toggle the display between F amp C 1 The display temperature mode can be changed from F to C or C to F by pressing and holding the COLDER FREEZER TEMP and the COLDER REFRIGERATOR TEMP keys at the same time for over one second 2 The initial setting is F Whenever the mode is changed the LED lights are changed 9 1 3 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 Standard RPM is used for normal usage 3 Fan motor stops when refrigerator of freezer door opens 9 1 4 EXPRESS
40. ncludes 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 dorit contaminate the inside of the compressor Contamination in the cylinder may cause noise improper operation or even cause it to lock 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
41. on Door does not close well Check if the door gasket is dirty with an item like juice Yls the refrigerator level ls there too much food in the refrigerator Clean the door gasket Y Position in a firm place and level the Leveling Screw Y Make sure food stored in shelves does not prevent the door from closing Ice and foods smell unpleasant Y Check if the inside of the unit is dirty Are foods with a strong odor unwrapped YThe unit smells of plastic XClean the inside of the unit Wrap foods that have a strong odor X New products smell of plastic but this will go away after 1 2 weeks Other possible problems Check if frost forms in Not the freezer defrosting Check the The system refrigeration system is faulty Check the Thermistor The operation of the Thermistor is incorrect 14 Check Components of the defrosting circuit Perform sealed system repair Replace the Thermistor 6 5 REFRIGERATION CYCLE Troubleshooting Chart STATE OF THE JEME ERATURE ARS THE UNIT EVAPORATOR SEHE 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 dont frost forms in inlet only tempe
42. other hand use pliers to insert snap ring as shown 3 Insert additional snap rings until the doors are aligned Three snap rings are provided with unit Figure 9 3 3 FAN AND FAN MOTOR 1 Remove the freezer shelf If your refrigerator has an icemaker remove the icemaker first 2 Remove the plastic guide for slides on left side by unscrewing phillips head screws 3 Remove the grille by removing one screw and pulling the grille forward 4 Remove the Fan Motor assembly by loosening 2 screws and disassembling the shroud 5 Pull out the fan and separate the Fan Motor and Bracket ia FAN MOTOR Ole FAN Figure 11 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 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 12 2 Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 13 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 count
43. rature Normal cooling is possible by In cool normally restoring the normal amount of 5 refrigerant and repairing the leak 2 COMPLETE Freezer Flowing sound of refrigerant Equal to ambient No discharging of Refrigerant LEAKAGE compartment and is not heard and frost isn t temperature X Normal cooling is possible by Refrigerator dont formed restoring the normal amount of cool normally refrigerant and repairing the leak PARTIAL Freezer Flowing sound of refrigerant A little higher Normal discharging of the 5 CLOG compartment and is heard and frost forms than ambient refrigerant e Refrigerator don t in inlet only temperature YThe capillary tube is faulty D cool normally UJ S WHOLE Freezer Flowing sound of refrigerant Equal to ambient X Normal discharging of the 5 CLOG compartment and is not heard and frost isn t temperature Refrigerant a Refrigerator don t cool formed 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 Freezer and Low flowing sound of A little higher Low pressure at high side Qo RESSION Refrigerator refrigerant is heard and than ambient of compressor due to low Fm don t cool frost forms in inlet only temperature refrigerant level 023 NO COMP No compressing Flowing sound of refrigerant Equal to ambient
44. s open contact indicated component Check current flowing Shorted in sub coil of Compressor Check rating of OLP F Lack of capacity Check wiring circuit Wire is open or shorted Replace gt indicated component Check Fan Motor Coil is shorted or open Check current flow in Replace the following Open indicated component components Sensor Fuse M Check current flow in Replace the Defrost Heater Defrost Heater 13 6 4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY No Cooling ls 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 YReplace the fuse Measure the voltage of the power outlet If the voltage is low correct the wiring Cools poorly Check if the unit is placed too close to the wall X Place the unit about 4 inches 10 cm from the wall X Check if the unit is placed too close to the stove Place the unit away from these heat sources gas cooker or in direct sunlight Yls the ambient temperature too high or YLower the ambient temperature the room door closed Check if food put in the refrigerator is hot X Put in foods after they have cooled down Did you open the door of the unit too often Y Don t open the door too often and close or check if the door is sealed properly it firmly X Check if the Control is set to W
45. the refrigerator temperature which is different in each model 31 9 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 Module SEVEN SEGMENT DISPLAY The drive type is the scan type IC1 Ra MICOM yf rS 1 O 5 SD a4 PCB ASS Y DISPLAY 32 9 3 RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR amp SENSOR DEFROST SENSOR amp ROOM SENSOR 20 C 22 3 K 77K 15 16 9 60 K 10 13 0 47 3 5 10 1 38 4 0C 7 8K 30K 5 6 2 241 10 4 9 19 5 15 3 9 15 9 20 3 1 13K 25 2 5 11K 30 2 0K 8 9K 40C 1 4K 6 2K 50 0 8K 4 3K 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 33 9 4 TROUBLESHOOTING PROBLEM INDICATED BY CHECK CHECKING METHOD CAUSE SOLUTION POWER SOURCE 1 The whole DISPLAY 1 FREEZER Check if FREEZER POWER SOURCE is poor Check outlet Voltage 15 poor LED SEVEN SEGMENT REFRIGERATOR REFRIGERATOR DOOR
46. the starting operation the PTC allows current flow to both the start winding and main winding 4 2 3 PTC Applied Circuit Diagram Starting Method for the Motor OVERLOAD PROTECTOR 2 COMPRESSOR 5 MOTOR 5 M gt PTC STARTER SEALED TERMINAL Resistance Starter Capacitor Running Figure 17 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 until 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 liqui
47. until clips snaps out 3 Continue prying back along seam until all clips snap out Gasket Door Bracket Clip Frame Figure 3 Flat Tip Screwdriver Gasket Bracket 3 Remove gasket Pull gasket free from gasket channel on the three remaining sides of door Figure 4 Door Gasket Replacement 1 Insert gasket bracket clips 1 Insert gasket bracket edge beneath door frame edge 2 Turn upper gasket bracket spring so that both spring ends are in the door channel 3 Push in clip until you hear it snap securely into place Gasket 1 Bracket Clip Spring E Door S Frame 41 Correct Incorrect Figure 5 4 Push in remaining two clips until you hear each snap securely into place Note Make sure that no part of gasket bracket edge protrudes from beneath door frame edge 2 Insert gasket into channel 1 Snap gasket assembly into the door bracket lt Inserting the Gasket Assembly into the Bracket Door gt Correct Incorrect Figure 6 2 Press gasket into channels on the three remaining sides of door 7 3 Replace door frame cover Starting at top of cover and working down snap cover back into door Figure 8 3 2 DOOR ALIGNMENT If the space between your doors is uneven follow the instructions below to align the doors 1 With one hand lift up the door you want to raise at middle hinge 2 With
48. ve wires are cut or short circuited 21 9 1 9 Electrical Parts Are Turned 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 45 C or more POWER _ino 5sec COMP 0 5 Freezer FAN when unit is newly ON y ON ON purchased or when moved zi 3 POWER in0 5 sec Defrosting in10sec Defrost heater Temperature of defrosting ON heaterON OFF o sensor is lower than 45 C 2 when power cuts SERVICE in 0 5 sec COMP in 0 5 sec Freezer FAN gt gt Reset to normal operation Total load in 7 min COMP inO 5sec Freezer FAN 22 9 1 10 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 ERROR CODE on display panel REFRIGERATOR TEMP COLDER WARMER 77 e 12 Oe UN 37 FIS RECOMMENDED Defect code signs
49. vious status 23 9 1 11 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 fan 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 Ww Inm 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 COMPRESSOR and the Freezer fan of Freezer Temp at the 2 Stepping DAMPER OPEN Same time for 3 seconds 3 Defrosting HEATER OFF OR Push TEST S W on 4 DISPLAY LED all ON the main Board Once TEST2 Push Express Freezing 1 Continuous operation of the Key and COLDER KEY COMPRESSOR and the Freezer fan of Freezer Temp at the 2 Stepping DAMPER CLOSE Same time for 3 seconds 3 Defrosting HEATER OFF In TEST MODE 1 OR 4 DISPLAY LED ahows no 2 Push TEST S W Once in TEST MODE 1 TEST3 Push Express Freezing 1 COMPRESSOR and the Freezer fan Reset if the Key and COLDER KEY OFF Temperature of the of Freezer Temp at the 2 Stepping DAM
50. zerwithwet hands Thismaycausefrostbite 6 Preventwaterfromspilingontoelectricelementsorthe machineparts 7 Beforetiltingtherefrigerator removeallmaterialsfrom onorintherefrigerator 8 Whenservicingtheevaporator wearglovestoprevent injuriesfromthesharpevaporatorfins 9 Serviceontherefrigeratorshouldbeperformedbya qualifiedtechnician Sealedsystemrepairmustbe performedbyaCFCcertifiedtechnician 1 SPECIFICATIONS 22 cu Ft 22 4 Ft ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DOOR DESIGN Side Rounded VEGETABLE TRAY Opaque Drawer Type DIMENSIONS W 836 x D 870 x H 1754 mm COMPRESSOR PTC Starting Type W 32 91 x D 84 25 x H 69 06 in EVAPORATOR Fin Tube Type 127 5 Kg CONDENSER Wire Condenser Sree eb lee pounds REFRIGERANT R 134a 1209 COOLING SYSTEM Fan Cooling LUBRICATING OIL 15010 220 ml TEMPERATURE CONTROL Micom Control DEFROSTING DEVICE SHEATH HEATER Full Automatic REFRIGERATOR 60 W 2EA DEFROSTING SYSTEM LAMP Heater Defrost FREEZER 60 W 1EA DOOR FINISH Embossed Metal PCM Smooth HANDLE TYPE Bar INNER CASE ABS Resin INSULATION Polyurethane Foam 2 PARTS IDENTIFICATION Use this section to become more familiar with the parts and features NOTE This guide covers several different models The refrigerator you have purchased may have some or all of the items listed below The lo

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