REFRIGERATOR SERVICE MANUAL
Contents
1. 15 GASE ASSEMBLY PUMP DISASSEMBEY 3 dt oce ees eme tutes su 16 COMPRESSOR inae ien cuenca e Ls ME E E 17 22 INVERTER LINEAR qud ir esee 17 22 HEAVY REPAIR METHOD OF REFRIGERATOR BY APPLICATION OF REFRIGERANT 23 GI IIR fce rcr 23 uu u u u P 24 29 CUR GOUT DIAGRAM 30 52 4 eee 31 35 ANOTHER ELECTRIC COMPONENTS 54 ctae fece bacon 31 SER VICE DIAGNOSIS 32 REFRIGERA HNG CY uu uuu u M 33 35 MICOM FUNCTION amp PCB CIRCUIT EXPLANATION 222 2 1 nhi nnns nnn n nene n nnn nnns nana nnne 36 43 MICOM ERROR u aa buie 43 uuu tamu uu haykusqa a a as 44 45 TROUBLESHOOTING WITH ERROR DISPLAY2. R SENSOR 2 WM N HBK F SENSOR CON2 REACTOR 3 E POWER nd CORD RT SENSOR me VALVE PWB PCB ASSEMBLY MAIN CON1 FUSE PART BIT p SB 14 80 13 9 BL 8 GY arm EM O NEUTRAL I 6NY L GN CON3 CON201 1 2 3 4 5 6 7 112134151617 ENVAVAVAEXVAE BGs Pd sd es PWB ASSEMBLY BERE c UJ ese RUNNING CAPACITOR COMPRESSOR EARTH PART MEZ62899902 THE PLUG TYPE CAPACITOR PART VEGETABLE LED PART COMPRESSOR ICE MAKER PART COMPRESSOR EARTH PART M ROOM PART DISPENSER PART FUSE PART FUSE M1 ON CIRCUIT DIAGRAM ARE SUBJECTED TO CHANGE IN DIFFERENT LOCALITIES AND ACCORDANCE WITH MODEL TYPE BKBLACK RD RED BO BRIGHT ORANGE GN GREEN WH RD WHITEIRED BL WH BLUE WHITE BLBLUE GY GRAY SB SKY BLUE PK PINK BK YL BLACK YELLOW YELLOW BLACK BN BROWN PR PURPLE YLYELLOW WH WHITE BK WH BLACK WHITE PR WH PURPLEMWHITE BRIGHT ORANGE BLUE GY WH GRAYWHITE WHIBL WHITE BLUE WHIGN WHITE GREEN RD YL RED YELLOW WHIBK WHITE BLACK GN YL GREEN YELLOW WH GN WHITE GREEN 30 TROUBLESHOOTING Mechanical Part 1 ANOTHER ELECTRIC COMPONENTS w Cooling is impossible Compressor Check if current flows to componenis Thermistor gt gt Poor contacting b Starting devices 9 Shorted or broken Poor contacting or shorted d
3. U U U u 46 56 TROUBLESHOOTING WITHOUT ERROR DISPLAY I U U u nn nnns sani nnne nnne nnns 57 65 uma ass uu assia uapa aa aa ea 66 70 EXPLODED VIEW amp REPLACEMENT PARTS LIST U U 71 83 SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator 1 2 3 Check the set for electric losses Unplug prior to servcing to prevent electric shock Whenever testing with power on wear rubber gloves to prevent electric shock If you use any kind of appliance check regular current voltage and capacity Don t touch metal products in the freezer with wet hands This may cause frostbite Prevent water from following onto electric elements in the mechanical parts When standing up after having checked the lower section of the refrigerator with the upper door open move with care to avoid hitting the upper door sJ When tilting the set remove any materials on the set especially the thin plates ex Glass shelf or books When servicing the evaporator wear cotton gloves This is to prevent injuries from the sharp evaporator fins Leave the disassembly of the refrigerating cycle to a specialized service center The gas inside the circuit may pollute the environment When you discharge the refrigerant wear the protective safety glasses or go
4. gt BEST FREEZER FRIDGE FREEZER m aC a C 7711 Ld WATER OPTI ZONE 5 G E pu OK EXPRESS FRZ EXPRESS FRZ 2 A VERI 65 ECO FRIENDLY ECO FRIENDLY sr DOORALARM MEAT lt DOOR ALARM i CHILD LOCK y n CHILD LOCK Contents Freezer ator Cut or short circuit wire Sensor Failure of Refrigerator Sensor Cut or short circuit wire Inspection connecting wires on each sensor Failure of Freezer Defrost Sensor Cut or short circuit wire Failure of Refrigerator Defrost Sensor Cut or short circuit wire Cut or short circuit wire 80minute later After starting defrost Snapping of defrost heater If sensor doesn t be over 5 C and Temperature fuse Failure of Opti Fresh Sensor e Q m Poor of Freezer Defrost Q Poor of Heater relay 50minute later After starting defrost operation Drain is If sensor doesn t be over 10 C blocked Poor of Refrigerator Defrost Failure of Fan Motor at Freezing Compartment FF If there is no fan motor signal Poor motor hooking to for more 65 sec in operation fan wire of fan and drive IC motor TR Failure of Fan Motor at Refrigerator Compartment 2 Failure of Fan Motor at Mechanical Room CF Short of lead wire If there is no signal for connecting between main Failure of communication between main PCB PCB and Display Communication N O O
5. Egg Tray Dairy Corner N Bottle Rack I d Removable 5 Glass Shelf ie i Water Pump Optional Water Tank Optional I TT O a M A Basket Door Fresh 0 Zone Vegetable Drawer Used to keep fruits and vegetables etc fresh and crisper Twist Ice Tray Ice Box EZ Open Handle Wire Shelf Optional Freezer Compartment Leveling Screw GB7138 VW GB7138 X W Z Lamp Removable Glass Shelf ULTI AIRFLOW Sy C Bottle Rack Fresh 0 Zone Vegetable Drawer Used to keep fruits and vegetables etc Twist Ice Tray Leveling Screw O fresh and crisper Wire Shelf Freezer Compartment Egg Tray Dairy Corner Basket Door Water Pump Optional Water Tank Optional Basket Door EZ Open Handle Optional INSTRUCTIONS FOR REVERSING DOOR SWING This refrigerator allows the owner to change the door swing if desired The hinging of the doors can be changed to the opposite side anytime you wish When reversing the door swing Read the instructions all the way through before starting Handle parts carefully to avoid
6. and display PCB transmission TR and receiving part 40 gt BETTER FREEZER FRIDGE EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK Error Code Lr Fefriger Contents Freezer ator EN Cut or short circuit wire Sensor FS 3 rS Cut or short circuit wire Inspection connecting Failure of Freezer Detrost Sensor dS F Cut or short circuit wire Failure of Refrigerator e r Cut or short circuit wire i dH or of 80minute later After starting defrost Snapping of defrost heater Freezer Defrost If sensor doesn t be over 5 C and Temperature fuse Poor of Heater relay Poor of later After starting defrost operation Drain is Refrigerator Defrost If sensor doesn t be over 10 blocked Failure of Fan Motor at Freezing FF Compartment Failure of Fan Motor at FF If there fan motor signal Poor motor hooking to Refrigerator for more 65 sec in operation fan wire of fan and drive Compartment motor IC TR Failure of Fan Motor at Mechanical Room 7 10 1 Short of lead wire Failure of If there isno signal for connecting between main 1 communication between main PCB PCB and Display Communication and display PCB transmission TRand receiving part 414 gt BETTER FREEZER FRIDGE FREEZER FRIDGE FREEZER FRIDGE FREEZER FRIDGE FRIDGE FREEZER FRIDGE FREEZER FRIDGE FREEZER FRIDGE FRIDGE FRIDGE FRIDGE Error ErrorCode Freezer
7. 3 2 lt 6 gt 61 5 Poor cooling in Freezer compratment Checking flow Result amp SVC Action Wem Re _ The sensor is determined by the temperature For example 23kQ indicates 20 C Reset the unit and Input Test 1 Mode Push the button 1 time ad the freezer door and check the air SVC Action Go to the 4 Check the Fan motor No windy Next page Check the air temperature Cold or not EN Not cold 62 Checking flow Result amp SVC Action Result Action VCA Rotate fan using your hand Point SAS ASEM It feel sticky change the motor Sticky Change the motor Cause of ice or rust inside of motor Point Result SVC Action 1 2 Below 12V Change the PCB 2 3 Change the motor 3 1 2 CONG NC 6 Over cooling in Refrigerator compartment Checking flow Result amp SVC Action Temperature Result _ lt CON5 gt The sensor is determined by the temperature For example 30kQ indicates 32 F Reset the unit and Input Test 1 Mode Push the button 1 time 17 6 18 5 Li 20 3 21 2 4 235 EXPRESS FRZ OPTI ZONE 2 z 1 z C DOOR ALARM vm CHILD Lock DOOR ALARM CHILD LOCK Open the refrigerator door and SVC Action Check the air flow 17 6 18 5 19 4 20 3 I 21 2 4 2 OPTI ZONE 22 1 r 23 0 ec I Windy Go to Gotothe4 4 gi the
8. Vacuum Pump Process Pipe N Pinch Plier Discharge refrigerant outside using window or door 3 Welding Repair Step Required equipment Simple welding machine Remove pinch pliers if remaining refrigerant returnis completed Cut the front part of a process pipe with a cutter Check that remaining refrigerant comes out Perform welding work such as replacement of compressor and dryer or repair of leakage part Be cautious of fire during welding work 25 4 Charging Tube Connection Step Required equipment Charging tube simple welding machine Remove a charging pipe to recharge R600a refrigerant after completing work and then connect a charging tube with welding Suction Pipe Charging Tube Discharge Pipe 5 Vacuum Air Removal Required equipment Vacuum pump Connect a vacuum pump to a charging tube to perform vacuum cycle e Vacuum work should be performed for an hour If vacuum time is short normal cooling performance may not be exerted due to failure of cooling cycle 6 Refrigerant Charging Required equipment Bombe R600a refrigerant 73g Firstly remove fire appliances and heating source for performing work when charging scaled refrigerant Do not spray refrigerant indoor Measure the accurate quantity 73g of refrigerant to charge it into a Bombe Make the Bomber as vacuum status to charge refrigerant If there is air or
9. Check 7 I Compressor Y Doesn t work Replace Driver PCB Capacitor Spec Check C Replace Capacitor N Pd Stroke Tri Power Compressor x Replace Damage Compressor N Check C Me ger Y 19 4 LED blinks five times then repeats Locked Piston Blink Blink Blink Blink Blink OFF Purpose To detect locked piston Cause Lack of oil to the cylinder cylinder or piston damaged and or restricted discharge A Locked Piston can also be caused by foreign materials inside the compressor Logic Compressor is forced off and tries to restart within 2 5 minutes Protection Blink 5 times logic Lock Piston Trip Replace Check B Check B3 Compressor Compressor Compressor Doesn t work Doesn t work Hi side restriction Sealed System Repeat Repair Check Procedure 20 5 LED blinks six times then repeats Current Trip Blink Blink Blink Blink Blink Blink OFF Purpose Prevent over current overload protect Cause Ambient temperature is high over 43 C and or refrigerator s condenser air movement is restricted Condenser Fan is stopped restricted discharge line compressor is damaged or IPM device is defective Logic Compressor is forced off and tries to restart after 2 5 minutes Protection Blink 6 time i t
10. 1 time Open the freezer door and Check the air flow SVC Action x While an error code is displayed p wey Get y Go to 4 Check the Fan motor Rotate fan using your hand It feel sticky change the motor Cause of ice or rust inside of motor Point Result SVC Action 1 2 Below 12V Change the PCB 2 3 Change the motor 3 1 2 lt 6 gt 53 FREEZER FRIDGE FREEZER 9 Condenser Fan Error CF las Checking flow Result amp SVC Action Reset the unit and Z Input Test 1 Mode Push the button 1 time 1 M 0 c Umm e 51 5 DOOR ALARM Check the fan rotating E Status SMS finr x While an error code is displayed fan is not working y 9 N Windy Go to the 5 Check the Fan motor and surrounding Rotate fan using your hand It feel sticky change the motor Check the Fan motor voltage 1 2 2 Resut 1 2 3 lt CON6 gt 54 FREEZER FRIDGE lt 10 Refrigerator Fan Error rF Reset the unit and Input Test 1 Mode Push the button 1 time Open the Refrigerator door and Check the a our SVC Action x While an error code is displayed the fan is not working Wndy 4 y Go to 4 Check the Fan motor Rotate fan using your hand It feel sticky change the motor Cause of ice or rust inside of motor S
11. 40 The sensor is determined by the temperature For example 23kQ indicates 20 C 46 FREEZER FRIDGE J 2 Fridge Sensor Error rS Checking flow Result amp SVC Action Check the White to White a ua SVC Action Change the sensor Replace the refrigerator Check the Temp and resistance Table 2 Temperature table 2 gt lt CON5 gt Temperature 23 F 5 C 32 F 0 C 41 F 5 C 50 10 59 15 x The sensor is determined by the temperature For example 30kQ indicates 0 C B ir FREEZER FRIDGE 3 RT Sensor Error rt Check for a loose connection Check the Brown to Brown S KA i Other Normal Peck din Temperature table 2 CONS Temperature 50 F 10 C The sensor is determined by the temperature For example 30k indicates 0 C 48 FREEZER FRIDGE n L 4 Defrost Sensor Error dS F gh F Checking flow Result amp SVC Action Check for a loose connection CON5 Replace the refrigerator Check the Temp and resistance Table 3 Other Normal CON5 Temperature table 3 gt _ X The sensor is determined by the temperature For example 23kQ indicates 20 C SVC Action Short Change the sensor 49 FREEZER FRIDGE ni i 5 Defrost Heater Error dH F Resuk SVG Acor Fuse M C
12. Hoses 5m 1EA 1m 3EA LOKRING e Portable Leakage detector 3g year e Nitrogen cylinder for leakage test e Concentration gauge Make sure before Servicing e Refrigerant Confirm the refrigerant by checking Name Plate and the label on the compressor after opening the COVER ASSEMBLY BACK M C e If the refrigerant is 600 you must not weld or apply a heat source Air Recharging in Compressor Before refilling the refrigerant you must perform the test according to Chapter 5 TROUBLESHOOTING CHART When the defects are found you must discharge the residual refrigerant R600a in the outdoor For discharging the refrigerant R600a break the narrow portion of tube extension by hand or with a pipe cutter as shown in Figure 1 Leave it for 30min in outside to stabilize the pressure with ambient Then check the pressure by piercing the dryer part with piercing pliers If the refrigerant is not completely discharged let the refrigerator alone for more 30min in outside CHARGE TUBE EXTENSION POINT TO BE BROKEN SCHRADER VALVE ONE WAY VALVE LOKRING Figure 2 SERVICE TUBE EXTENSION Figure 1 Attach the service tube installed with a Schrader valve one way valve by using the LOKRING Figure 2 Then connect the Schrader valve one way valve to the pump that is connected to the discharging hose leading to the outside When discharging the residual refrigerant repeat 3 cycle that includes 3min of the pump runn
13. Trip Compressor L Replace ogic urrent I rip Intermittent Capacitor Check B Check B4 T Check C2 Replace Driver PCB a 4 Repeat Current tri 7 Compressor s NG Replace Check Damage 2 Procedure Occur Check Compressor d Y 21 6 LED blinks seven times then repeats IPM Fault Blink Blink Blink Blink Blink Blink Blink OFF Purpose Prevent high current due to IPM Short Cause Damaged IPM Dead Short Test for a dead short at Point A with a VOM Logic Compressor is forced off and tries to restart in 2 5 minutes solel 7 1 IC e Protection Blink 7 times logic Lock Piston Trip Check B Check B5 Y Compressor Doesn t work visual inspection turn off E 2 IL Check IPM Shot N hs Test gt Drive PCB S Point Ap 2 I Compressor Y lt lt Damage N lt Check 4 of Repeat Check Procedure Replace Compressor 22 Heavy Repair Method of Refrigerator by Application of Refrigerant 1 Outline 1 Checkpoints before Heavy Repair Open the Cover ASM Back M C of refrigerator and check the type of refrigerant indicated on a compressor before starting work A yellow label is adhered to the compressor for the refrigerator using R600a as refrigerant 2 Features of R600a Refrigerant e Non polar na
14. ator Normality Display Switch is norma 2 Failure of Freezer E Cut or short circuit wire Sensor Failure of Refrigerator Cut or short circuit wire l Sensor Inspection connecting wires on each sensor 4 Failure of Freezer Cut or short circuit wire Defrost Sensor 5 Failure of Refrigerator Cut or short circuit wire Defrost Sensor Poor of 80minute later After starting defrost Snapping of defrost heater Freezer Defrost If sensor doesn t be over 5 C and Temperature fuse Poor of Heater rela Poor of 50minute later After starting defrost 7 operation Drain 15 Refrigerator Defrost If sensor doesn t be over 10 C blocked Failure of Fan Motor at Freezing Compartment FF If there is no fan motor signal Poor motor hooking to for more 65 sec in operation fan wire of fan and drive motor IC TR Failure of Fan Motor at Refrigerator 7 8 Compartment 9 10 10 Failure of Fan Motor at Mechanical Room Short of lead wire Failure of If there is no signal for connecting between main Communication communication between main PCB PCB and Display and display PCB transmission TR and receiving part 42 MICOM Error Code 1 Error Code Summary A WARNING When you check the Resistance values be sure to turn off the power And wait for the voltage discharge sufficiently 1 FAILURE DIAGNOISS FUNCTION Normality Load control 3 Way F Defrost R Defrost me olo Failu
15. be used may result in failure 16 COMPRESSOR 1 Inverter Linear Compressor Check for defect of the inverter linear compressor in following orders 1 Method to Measure Compressor Winding Resistance Normal Determination Criteria The compressor winding resistance can be determined as normal if resistance values show the values as described in below figure when measuring resistance values of the harness connected with compressor to connect Connect201 CON201 of the main PWB as shown in below figure Defect Determination Criteria e Check connection status of the Compressor Connection Harness P Lead Wire which is located at the M C room where resistance values measured at the CON201 Housing are shown as infinite or several hundred yo Separate connecting wires of the M C room A point in Figure and then measure resistance values at the connecting wires again The compressor can be determined as normal if resistance values are shown as standard resistance value Check connection status of a harness Defect at M C room connection contact or CON201 Housing contact short circuit of harness e Where resistance values measured at A point are also shown as infinite or several hundred yo disassemble a cover PTC of the compressor terminal and check the terminal connecting status at the B point in Figure e Where there is no failure the wiring status and resistance values are shown as infinite or several hundred it may be det
16. ends Don t keep the drier in a outdoors because humidity damages to it Apply M C Vacuum Gauge without fail Perform vacuum operation until a proper vacuum degree is built up If a proper vacuum degree isn t built up check the leakage from the Cycle Pipe line part and Quick Coupler Connecting part NIPPLE AND 1 Check if gas leaks with soapy water Check if gas leaks from joint of the 7 COUPLER 2 Replace Quick Coupler in case of leakage Coupler Put all Joint Pipes in a clean box and cover tightly with the lid so that dust or humidity is not inserted nmi 34 ceeds TUBE LOKRING LOKRING JOINT Figure 23 LOKRING ASSEMBLY JAWS Figure 24 LOKRING TOOL 35 MICOM FUNCTION amp PCB CIRCUIT EXPLANATION 1 FUCTION EXPOSITION 1 FUNCTION 1 When the appliance is plugged in it is set t 3for the Refrigerator and 2 for the Freezer You can adjust the Refrigerator and the Freezer control temperature by pressing the FRZ Temp button or REF Temp button 2 When the power is initially applied or restored after a power failure it is automatically set t6C 20C FREEZER FRIDGE e C C n I l T UN C NOWATER 20 Express KAN Gk EXPRESS FRZ Temperature Frz Adjustment DOOR ALARM Eco ei gt Button for Friendly 2 Chill C
17. moisture in a Bombe it may give effect on performance of a cooling cycle e Please manage refrigerant quantity as 73g 1 Differently from R134a R600a gives much effect on cooling performance depending on change of refrigerant quantity Refrigerant quantity Weight after charging Weight before charging weight of vacuumed Bombe e Connect Bombe with a charging tube to charge refrigerant e Turn on power of refrigerator to operate a compressor e Measure Bombe weight after 5 through 10 minutes to check remained refrigerant quantity to complete charging of refrigerant After charging refrigerant never perform welding work or work using fire appliances Suction Pipe Charging Tube Discharge Pipe 7 Leak Inspection and Cycle Check Required equipment Leakage checking machine foam and leakage inspection machine e Check for leakage by using form or a leakage inspection machine at the worked part if charging of refrigerant is completed e Check for leakage at the low pressure part with the compressor stopped and check at the high pressure part with the compressor being operating e f leakage is detected proceed to repair according to repair process again starting from 2 1 Returnof Refrigerator Refrigerant Never perform welding work or work using fire appliances e Check that heat remains at a discharge pipe or condenser with the hands if leakage check is completed If heat remains the cooling cycle is normal Take
18. 1EA Egg Tray Dairy Corner DOOR BASKET Basket Door Basket Water Tank Tray Drawer 3EA Ice bin 1EA Twist Ice Maker Kit 1EA Wire Shelf 2EA FREEZER COMPARTMENT oO PARTS IDENTIFICATION GB7143 A B V Bottle Rack Removable Glass Shelf Water Tank Vegetable Drawer Used to keep fruits and vegetables etc fresh and crisper OPTI Zone Optional Auto Twisting Ice Maker Ice Box Wire Shelf Freezer Compartment Leveling Screw S S lt a ee wea dr E Jj 4 amp 2 ae S a aaa m 9 A 4 WI Egg Tray Dairy Corner Basket Door Water Pump Optional Water Tank Optional Basket Door EZ Open Handle Optional GB7143 G H WIZ Bottle Rack Removable Glass Shelf Vegetable Drawer Used to keep fruits and vegetables etc fresh and crisper OPTI Zone Optional Twist Ice Tray Ice Box Wire Shelf Freezer Compartment Leveling Screw Lamp LTI AIRFLOW Egg Tray Dairy Corner Basket Door Water Pump Optional Water Tank Optional Basket Door EZ Open Handle Optional GB7143 PW GB7143 R W Z
19. CK Main PWB 2 How to remove Terminal Position Assurance TPA lt AC TPA gt lt DC TPA gt After measure the values you should put in the TPA again 66 2 TEMPERATRUE CHART FRZ AND ICING SENSOR 257 3 TEMPERATRUE CHART REF AND DEF SENSOR 68 4 TEMPERATRUE CHART AMBIENT SENSOR 69 VOLTAGE 4 79 V 4 72 V 4 64 V 4 54 V 4 43 V 4 29 V 4 13 V 3 95 V 3 75 V 3 54 V 3 31 V 3 07 V 2 83 V 2 59 V 2 35 V 2 13 V 1 91 V 1 71 V 5 How to check the Fan Error 1 July 2007 After sending a signal to the fan the MICOM checks the BLDC fan motor s lock status If there is no feedback signal from the BLDC fan the fan motor stops for 10 seconds and then is powered again for 15 seconds To determine that there is a fan motor malfunction this process is repeated 5 times If the fan motor is determined to be defective the error code will be shown continuously in the display At this point there is no further check of the fan motor Error Display 2 Aug 2007 After sending a signal to the fan the MICOM checks the BLDC fan motor s lock status If there is no feedback signal from the BLDC fan the fan motor stops for 10 seconds and then is powered again for 15 seconds To determine that there is a fan motor malfunction this process is repeated 3 times If the fan motor is determined to be defective the error code will be shown in the d
20. Compressor coil s gt Coil shorted e Circuit Parts gt Poor contacting o gt Replace each component or shorted Running state of Check a starting Check if current flows Poor contacting and Replace each to starting devices broken component Check current flowing sub coil of Compressor Check capacity of The items described Coil of motor Replace the above are normal Compressor compressor Poor contacting Check current flowing in the MOTOR MECH Coil is shorted FAN Much frost are sticked Check current flowing Shorted Replace each to the EVAPORATOR of the following component v Cooling ability is poor Fan motor doesn t run Check current flowing in SWITCH DOOR Replace each component components THERMISTOR e FUSE MELTING Check current flowing of the following Defect on Heater Replace the Heater components Sheath Sheath HEATER SHEATH 31 2 SERVICE DIAGNOSIS CHART COMPLAINT Cooling is impossible Cooling ability is poor Foods in the Refrigerator are frozen Dew or ice forms in the chamber of the set Dew forms in the Exterior Case Abnormal noise generates To close the door is not handy Ice and foods smell unpleasant POINTS TO BE CHECKED Is the power cord unplugged from the outlet Check if the power switch is set to OFF Check if the fuse of power switch is shorted
21. Drier 23 2 Heavy Repair SVC Method For the heaver repair of R600a type of refrigerator perform work according to following SVC method 1 Returnof Refrigerator Refrigerant Required equipment Pinch pliers refrigerant discharging hose refrigerant returnbag e Take power cords out and remove power between 6sec through 12sec after powering ON to open all both sides of 3way valve Leave doors of a refrigerator so that they not closed e Connect pinch pliers with a refrigerant discharging hose Place the outlet of a refrigerant discharging hose outside Remove fire appliances or heating sources near a refrigerant discharging hose Always use a refrigerant returnbag for working at the contained space e Bore the charging pipe of a compressor with pinch pliers Remove fire appliances or heating sources near a refrigerator Perform refrigerant discharge for more than 7 minutes Suction Pipe Discharge Pipe Refrigerant ReturnBag 24 2 Returnof Remained Refrigerant Required equipment Pinch pliers hose for refrigerant recovery vacuum pump e If refrigerant returntime of 7 minutes has passed connect a vacuum pump at the ends of a refrigerant returnhose outdoor Vacuum pump must operate outdoor Operate a vacuum pump in order to returnrefrigerant remained in the pipe e Vacuum working time should be for more than 10 minutes COMP Suction Pipe E Discharge Pipe o7
22. LG REFRIGERATOR http biz lgservice com CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Ref No Ref No GB7143 AV GB7143 GZ GB7143 BV GB7143 HZ Ref No GB7143 RZ GB7138 XZ Ref No GB7143 RZ GB7138 XZ COLOR CONTENTS SAFETY PRECAUTIONS doter a up end 2 SERVICING PRECAUTIONS cate el q teens 3 SPECIFICATIONS visose es ares tte taeda 4 5 PARTS IDENTIFICATION IT IAM MILLE 6 9 INSTRUCTIONS FOR REVERSING DOOR SWING 10 12 DISASSEMBLY tod E LR ig ole ce E alae Cus 13 15 pergam et 13 perg SV VET Gy Mem 13 REFRIGERATOR ROONPEAMD u Pea areca ad ale 13 FAN FAN MOTOR u 14 DEFROST CONTROLASSEMBEY u u ecu eb 14 FAIDGE HEATER SHEATH u S X 15 FREEZER HEATER SHEATH u u kuu uz a
23. Measure the voltage of power outlet Check if the set is placed close to wall Check if the set is placed close to stove gas cooker and direct rays Is the ambient temperature high or the room door closed Check if put in is hot Did you open the door of the set too often or check if the door is closed up Check if the Damper Control is set to cold position Is foods placed in cooling air outlet Check if the control is set to cold position Is the ambient temperature below 5 C Is liquid food stored Check if put in is hot Did you open the door of the set too often or check if the door is closed up Check if ambient temperature and humidity of surroumcling air are high Is there gap in the door packed Are the set positioned in a firm and even place Are any unnecessary objects set in the back side of the set Check if the Tray Drip is not firmly fixed Check if the cover of mechanical room in below and front side is taken out Check if the door packing is dirty with filth Such as juice Is the set positioned in a firm and even place Is too much food putted in the set Check if the inside of the set is dirty Did you keep smelly foods without wrapping It smells of plastic REMEDY Plug to the outlet Set the switch to ON Replace a regular fuse If voltage is low wire newly Place the set with the space of about 10cm Place the set apart from these heat appliances Make the ambien
24. T 13 Remove the HOLDER CORD 14 placed in right and insert it to center And then move COVER FRONT 16 Take out the HOLDER CORD spare 15 and to place in the center of TOP COVER FRONT 13 and insert to the left side 11 6 Take out the LEAD WIRE 17 assembly from the TOP COVER FRONT 13 and assemble it on left side 7 Remove bolts 18 securing HINGE U 19 Unscrew of the hinge pin 20 Place HINGE U and seat hinge upside down and apply them to left side of the refrigerator NOTE Seat hinge to be placed under the HINGEU 19 8 Remove bolts 22 securing HINGEC 23 and then remove HINGE C 23 Remove the freezer door Move in left side of the refrigerator CAP 24 Move to left side of the refrigerator door BRACKET DOOR 25 and screw 26 9 Remove Bolts 27 HINGE L 28 Stopper 29 80 and Lavel 31 Use the new HINGE L in Drawer and attach a label to a screw Hole 10 Assemble the HINGE L Freezer Door gt HINGE C 23 Refrigerator Door gt HINGE U 19 gt TOP COVER 13 gt COVER PWB 11 Connect the Housing Connector 9 gt DECO COVER 7 gt HANDLE 1 5 Note Reversing the doors is not covered by the warranty 12 DISASSEMBLY 1 DOOR 3 REFRIGERATOR ROOM LAMP e Freezer Door 1 Unplug the power cork the outlet 2 Remove all of the fridge compartment Involved removable glass shelf wine rack etc 3 Remove on
25. VC Action Check the Refrigerator door switch If feel sticky Change the door s w Check the door S W resistance SVC Action Go to the 3 Change door S W Push Infinity S iW Change door S W Check the White to Sky Blue SVC Action Go to the 4 Change the P CB 0 V Go to the 4 Open Other Change the PCB lt CON4 gt Check the Red to White Black Result SVC Action Explain to customer Change the PCB lt CON6 gt 59 4 Poor cooling in Refrigerator compartment Checking flow Result amp SVC Action Temperature Re x The sensor is determined by the temperature For example 30kQ indicates 0 C Reset the unit and Input Test 1 Mode Push the button 1 time Open the fresh food door and Status Check the air flow Windy Check the Fan motor No windy Next page Open the fresh food door and Check the air flow Status SVC Action Check the damper No windy Go to the 6 Check the air temperature Status SVC Action Cold or not Explain to customer Not cold Check the Compressor O And sealed system 60 Checking flow Result amp SVC Action Check the Fan motor Result SVC Acti Rotate fan using your hand Point It feel sticky change the motor Sticky Change the motor Cause of ice or rust inside of motor Point Result SVC Action _ C 1 2 Below 12V Change the PCB 2 3 Change motor 1
26. VCAcHon 1 2 Below 12V Changethe PCB 1 3 Change the motor 55 FRIDGE 11 Communication Error Er Result SVC Action Check the Hinge Loose connection Change the Main PCB SVC Action 5 Change the Display PCB Go to the 4 Result 5 Action 0 5 Change the Main Go to the 5 Result Action OVor5V Change the Display PCB Go to the 6 SVC Action 0Vor5V Change the Main PCB Explain to customer CONS Main 56 Troubleshooting Without Error Display 1 Vegetable LED doesn t work Checking flow Result amp SVC Action Check the loose connection Check the Purple to Orange Blue Result SVC Action 0 or 12 V Explain to customer Change the PCB lt 5 gt 57 2 Water pump motor doesn t work Checking flow Result amp SVC Action Check the Dispenser S W resistance Status Result SVC Action Q Go to the 3 Change door S W Push Go to the 3 SW s Change door S W SVC Action Go to the 4 Change the P CB Push Go to the 4 S W Change the PCB Check the White to Sky Blue Status Normal Check the Red to white Black Status Result SVC Action 0 2 Explain to customer Normal Change the PCB Push 10 12V Explain to customer S W Change the PCB 58 3 Refrigerator room lamp doesn t work Checking flow Result amp S
27. burn while servicing 1 After removing the Grille and Shroud separate the Heater Sheath by disconnecting the connectors 2 Exchanged Heater Sheath and connected the housing 7 FREEZER HEATER SHEATH In this refrigerator Heater Sheath is used for defrosting heater During heating the temperature of heater rises about 300 350 C Therefore be careful not to burn while servicing 1 After removing the Grille and Shroud separate the Heater Sheath by disconnecting the connectors 2 Exchanged Heater Sheath and connected the housing Heater Sheath Figure 13 15 8 CASE ASSEMBLY PUMP DISASSEMBLY Remove the basket over The dial rotated with open Remove the water tank the case pump Disassemble Screw Pull up the case pump Pull out each other and Disconnect the tubes e Check these when water is not supplied 1 Check whether water is in the water tank 2 Check whether you can hear the sound of pump working when you push the dispenser button 3 Check each connecting point of tubes Water tank assembly Case pump assembly Notice Pump may cause noise while water is being dispensed This is due to remove the water inside tube for sanitation When long period dose not use or the first use you have to fill the water tank with over 1L water Caution Do not use other beverage milk juice carbonated beverage etc than potable water Especially beverage including grain must not
28. care since a discharge pipe may be hot 257 8 Failure Checking Procedures Check of cooler Check of rotation aU P BOO Surface of Rens of COMP P Room cooler is cold Somewhatl cold Moisture clogged Leakage of 3way valve Surface of 160068 07018 Clogged cooler is cold capillary tube Leakage of 3way valve Poor operation Non insertion of of 3way valve valve housing Short circuit of valve L wire Defect or shortage of valve Defect or shortage of PCB Leakage of Leakage of Check of refrigerant welding part leakage part Leakage of radiator 28 9 Cautions in Heavy Repair Service Special caution should be taken since fire may occur for welding work since refrigerant may remain as it is at the high pressure side even after vacuum air discharge in relation with cycle clogging Take power cords out and remove power between 6sec 12sec after powering on in order to open both sides of 3way valve in the step of refrigerant recovery If both sides of 3way valve will not be opened fire may occur during welding work since refrigerant may remain during the cycle prevent moisture clogging always replace dryer together during heavy repair of refrigerator 3 Way Valve Service Since 3 way valve controls refrigerant with an inner plastic damper defect may occur because the plastic damper is deteriorated and welding heat is delivered to a pipe during welding for repair and replacement of the
29. e screws in Case Control Refrigerator 4 Pull out the Grille Fan and Case Control Refrigerator 5 Disconnect the Housing of lead wire 6 7 8 1 Refer to previous chapter Instruction for Reversing Door Swing 2 Pull out the Door Gasket to remover from the Door Foam Assembly F Replace new one GASKET Assembly in reverse order of disassembly Replacement LED must be the same specification as original Figure 7 Figure 10 e Door e Don t touch the LED in case of light on the long time 1 Refer to previous chapter Instruction for Reversing Because it can be very hot Door Swing e LED capacity is MAX 8W GB7138 MODEL 6W 2 Pull out the Door Gasket to remove from the Door e The LED will remain ON for 7minutes if the door is left Foam Assembly R open and then it is OFF for safety If you reopen the door the lamp is On 2 DOOR SWITCH 1 Unplug the power cord from the outlet 2 Loosen six screws in upper part and disconnect Top Cover Front 3 Disconnect Lead Wire from switch 4 Disengage hook behind the switch by pressing it with hands Figure 9 13 4 FAN AND FAN MOTOR 1 Fridge 1 Remove all of the Fridge compartment 2 Remove one screw in Case Assembly Control REF 3 Pull out the Case Assembly Control REF 4 Disconnect the Housing of lead wire 5 Loose five screws fixed to the Bracket 6 Pull out B
30. ermined as defect of compressor e Since if there is no failure in resistance values of the compressor it may be defective Main PWB replace the Main PCB and check for normal operation of the compressor e When determining any defect through resistance measuring it can be determined as normal if resistance values show as descried in the below figure by measuring power and common terminal or full power and common terminal However resistance values are measured when measuring power and full but measuring is meaningless since they cannot become criteria for determining defect measuring not required Caution 1 Be sure to powering off the refrigerator and measure after several minutes has passed 2 If not accurately measuring resistance wrong determination may be guided Difference of resistance value of several W Or so may occur CON201 Po N C Po Power Co Common N C Open terminal Co Because of ambient temperature or operating situations the values shown have a slight deviation Capacitor Spec 550V 10uF 5 F Multi E Tester Hermetic terminal 247 2 Method to Determine Defect of Inverter Linear Drive Determination of Comp Operation Separate the back cover at the rear of refrigerator and determine for possible operation while touching the compressor with the hands with insulation gloves worn Comp Operation Determine possible trip by checking o
31. ggle for eye safety When you repair the cycle system in refrigerator the work area is well ventilated Especially if the refrigerant is R600a there are no fire or heat sources No smoking SERVICING PRECAUTIONS Features of refrigerant R600a Achromatic and odor less gas e Flammable gas and the ignition explosion at 494 C Upper lower explosion limit 1 8 8 4 Vol Features of the R600a refrigerator Charging of 6096 refrigerant compared with a R134a model The suction pressure is below 1bar abs during the operation Because of its low suction pressure the external air may flow in the cycle system when the refrigerant leak and it causes malfunction in the compressor displacement of compressor using R600a must be at least 1 7 times larger than that of R134a Any type of dryer is applicable XH 5 7 9 e EVAPORATOR or any other cycle part that has welding joint is hidden in the foam If not hidden inside the whole electric parts must be tested with the LEAKAGE TEST according to the IEC Standard The compressor has label of the refrigerant R600a Only the SVC man must have an access to the system Installation place Must be well ventilated Must be 20 m or larger Must be no smoking area No ignitable factors must be present Utilities Refrigerant cylinder MAX NET 300g e Manometer e Vacuum pump 600 min e Piercing Clamp e Quick coupler e
32. hange Fuse M Def 34 42 Q Go to the 3 Heater Def Heater Change Fuse M 5 0 Q Fuse M Def 09 een Def Sensor Input Test 2 Mode Push the button 2 times Check the Brown to Blue 220 240 V Go to the 5 Replace Main PCB lt CON3 gt Release the test mode Push the button 1 times Normal CHILD LOCK Check the Brown to Blue lt CON3 gt 50 FRIDGE 6 Defrost Sensor Error dS r Check for a loose connection lt CON5 gt Check the Violet to Violet SVC ACEO OFF Open Replace the refrigerator Check the Temp and resistance Table 3 lt Temperature table 3 gt The sensor is determined by the temperature Forexample 23 KQ indicates 20 C 51 7 Defrost Heater Error dH r SVC Action coo thes Fuse M Def 34 42 0 Heater Def Snor Def Sensor FREEZER FRIDGE 17 Input Test 2 Mode es Push the button 2 times 9 EXPRESS FRZ ECO FRIENDLY EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK CHILD LOCK Checkthe Orange to Blue FREEZER FRIDGE FREEZER FRIDGE R elease the test mode Push the button 1 times Normal C isle EXPRESS FRZ ECO FRIENDLY INA EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK CHILD LOCK Checkthe Orange to Blue Result 220 240 V lt CON3 gt 52 FREEZER FRIDGE 8 Freezer Fan Error FF Reset the unit and Input Test 1 Mode Push the button
33. ient temperature Chill compartment is the special temperature zone 0 m gt 3 Express Frz e Please select this function for prompt freezing This function is used when you want to freeze the foods quickly Press the Express Frz button once and then the quick freeze operation starts with the lamp on The Express Frz operation takes about 3 hours When its operation ends it automatically returns to the previous temperature setting If you want to stop the quick freeze operation press the Express Frz button once more the lamp goes out and the Express Frz operation stops and the refrigerator returns to the previous temperature setting FREEZER FRIDGE FREEZER FRIDGE 17 ertr EXPRESS FRZ EXPRESS FRZ ECO FRIENDLY EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK DOOR ALARM CHILD LOCK Better Better FREEZER FREEZER FRIDGE e C 1 1 Zu 2 20 K NO WATER OPTI ZONE ECO FRIENDLY Weg 3K EXPRESS FRZ C ECO FRIENDLY DOOR ALARM gt DOOR ALARM MEAT CHILD LOCK cGy CHILD LOCK Best Best The arrow mark graphic remains at the on status after flickering for 4 times when selecting Express Frz is turned On 37 4 Eco Friendly This function makes the fridge freezer work in a power saving mode which is useful for when you are away on holiday by reducing energy consumption Pressing ECO FRIENDLY starts operatio
34. ing gt pump off gt 30sec of the compressor running i3 After the refrigerant R600a is completely discharged repair any defective parts and replace the dryer At any case you must use the LOKRING for connecting or replacing any part in the cycle No Fire No Welding Connect the Schrader valve to pump with the coupler And then turn the pump on for vacuum state Figure 3 Let the pump run until the low pressure gauge indicates the vacuum gauge pressure 0 absolute pressure 1atm or 760mmHg Recommended vacuum time is 30 min Charge the gas in order to check for leakage from welding points and the LOKRING If leakages are found repair the defects and repeat the vacuum process sn TO THE VACUUM PUMP PRESSURE GAUGE Figure 3 After the system is completely vacuumed fill it with the refrigerant R600a up to what has been specified at your refrigerator Name Plate The amount of refrigerant R600a must be precisely measured within the error of 2g by an electron scale Figure 4 If you use the manifold connected with both the refrigerant R600a cylinder and the vacuum pump simultaneously make sure the pump valve is closed Figure 5 REFRIGERANT R600a CHARGING HOSE COUPLE THROTTLE VALVE Figure 4 FILLING OR VALVE TO BE OPENED CHARGE TUBE WHEN REFILLING TO THE CHARGE CYLINDER O THE REFRIGERATION SYSTEM VALVE TO BE CLOSED AFTER VACUUM TO THE VACUUM PUMP Figure 5 C
35. isplay for 30 minutes At this point the process will be repeated until the fan motor operates normally If normal operation is achieved the error display is erased and the MICOM is reset automatically Repeat Pause 30min Pause 30min 70 XPLODED VIEW Ref GB70 TZ w The parts of r efrigera tor and the sha pe of each part are subje ct to cha nge in dif ferent ocalities mM ETT I 109A Ref GB7043 T EXPLODED VIEW Ref GB71 A B V GB71 G H Z GB7143 RZ GB7138 XZ GB70 TZ w The parts of refrigerator and the shape of each part are subject to change in different localities Q N NS AN 1 N MFL64999802 JAN 2011 Printed in Poland
36. larm Buzzer Mute Mode e Press ALARM LOCK to turn the buzzer on or off 38 8 Exhibition Demo Mode e Demo mode is available for displaying the refrigerator in a sales setting or similar condition e It allows the display dispenser and lights to operate without running the compressor and fan e To apply the DEMO mode open the door and press and hold the REFRIGERATOR and EXPRESS FRZ buttons simultaneously for 5 second e To exit the DEMO mode and return to normal operation press and hold the REFRIGERATOR and EXPRESS FRZ for 5 second FREEZER FRIDGE Fur 427 Lu OPTI ZONE VEGE s gt MEAT Gk EXPRESS FRZ G3 ECO FRIENDLY DOOR ALARM CHILD Lock FREEZER 17 18 FRIDGE EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK FREEZER 17 18 EXPRESS FRZ DOOR ALARM FREEZER 17 18 EXPRESS FRZ DOOR ALARM FRIDGE ECO FRIENDLY CHILD LOCK OPTI ZONE VEGE 0 gt Gy ECO FRIENDLY K DOOR ALARM CHILD LOCK FRIDGE FREEZER 17 18 ECO FRIENDLY EXPRESS FRZ CHILD LOCK DOOR ALARM FREEZER 17 18 FRIDGE EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK Better 39 FRIDGE ECO FRIENDLY CHILD LOCK FREEZER 17 18 EXPRESS FRZ DOOR ALARM FREEZER FRIDGE EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK FREEZER 17 18 FRIDGE EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK FRIDGE ECO FRIENDLY CHILD LOCK
37. m Input Test 2 Mode and Status SVC Action Check the air flow Push the button 1 time Go to the 5 64 7 Over cooling in Freezer compartment Checking flow Result amp SVC Action NEN NN CONS The sensor is determined by the temperature For example 24kQ indicates 20 C Reset the unit and Input Test 1 Mode Push the button 1 time Status Result SVC Action Test 1 230 V Go to the 4 mode Change the PCB Input Test 2 Mode Push the button 1 time Check the Black to Blue Status Result 5 Action Test 2 Explain to customer mode Change the PCB I Check the Black to Blue 65 Reference 1 TEST MODE and Removing TPA 1 How to make TEST MODE If you push the test button on the Main PCB the refrigerator will be enter the TEST MODE 1 time Comp Damper All FAN on All things displayed FREEZER FRIDGE IU 171 FREEZER FRIDGE FREEZER FRIDGE eb EXPRESS FRZ OPTI ZONE ECO FRIENDLY VESE EXPRESS FRZ FRIENDLY c DOOR ALARM EXPRESS FRZ ECO FRIENDLY MEAT a CHILD LOCK DOOR ALARM CHILD LOCK DOOR ALARM CHILD LOCK x 2 times Forced defrost mode 22 22 displayed FREEZER LU II 12 FREEZER FRIDGE FREEZER FRIDGE EXPRESS FRZ OPTI ZONE ec ec ECO FRIENDLY EXPRESS FRZ ECO FRIENDLY DOOR ALARM EXPRESS FRZ ECO FRIENDLY CHILD LOCK DOOR ALARM CHILD LOCK DOOR ALARM CHILD LO
38. mal cooling is possible when injecting of Refrigerant the regular amount Normal discharging of refrigerant e he capillary tube is faulty e Normal discharging of Refrigerant e Cooling operation restarts when heating the inlet of capillary tube The pressure of high pressure part in compressor is low No pressure of high pressure part in the compressor e Observe discharging point of refrigerant which be in the oil discharging part in the compressor and hole of evaporator Whether Compressor YES runs or not Frost formed normally Whether frost forms or not in Evaporator Normal amount Moisture Clog aa Check Compressor Clogged by dust 2323 Inject Refrigerant to Compressor No frost or forms in inlet only Whether oil leaks or not Observe the discharged amount of Refrigerant and check cooling operation Frost formed normally No or much amount No or much amount YES Gas leakage Check the leakage point w General Control of Refrigerating Cycle ITEMS CONTENTS AND SPECIFICATIONS WELDING ROD 1 H 30 Chemical Ingredients Ag 30 Cu 27 Zn 2396 Cd 2096 Brazing Temperature 710 840 C 2 Bcup 2 Chemical Ingredients Cu About 9396 P 6 877 596 The rest within 0 296 Brazing Temperature 735 840 C um Ingredients and how to make Borax 3096 Borax 35 Fluoridation kalium 35 Water 4 Mix the abo
39. n with lamp on and pressing it again stops the operation FREEZER FRIDGE FREEZER FRIDGE 17 T e e U ECO FR D LY EXPRESS FRZ ECO FRIENDLY EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK DOOR ALARM CHILD LOCK Better Better FREEZER FRIDGE FREEZER FRIDGE aw aw EXPRESS FRZ OPTI ZONE ro WATER OPTI ZONE ECO FRIENDLY M ECO FRIENDLY VEGE x EXPRESS FRZ gt ECO FRIENDLY DOOR ALARM 5 DOOR ALARM MEAT ia r CHILD Lock cGy CHILD LOCK 65 Best Best NOTE When the Eco Friendly mode is ON the other buttons will not operate When you come back from Eco Friendly press the Eco Friendly mode off so that other buttons work and the refrigerator returns to previous temperature setting 5 Lock For LED Model e Pressing this button stops operation of other buttons e Locking or Un Locking is repeated whenever pressing the LOCK button For Locking press the LOCK button for 3 sec For Un Locking press the LOCK button for 3 sec e When LOCK is activated pressing the other buttons would not work 2 n 2 Unlock Lock Unlock 6 Power On Off e Pressing this button refrigerator power is ON or OFF e ON or OFF is repeated whenever pressing the ON OFF button For OFF press the ON OFF button for 7 sec For ON press the ON OFF button for 1 sec 7 Door A
40. omatic Heater Defrost Heater Sheath Heater L Cord REFRIGERANT WEIGHT R600a FREOL 60MT 310 cc FREOL 55MT 180 cc COMPRESSOR PTC Starting Type EVAPORATOR Pin Tube Type e DEFROSTING DEVICE LUBRICATION OIL CONDENSER Wire Condenser Removable Glass Shelf Bottle Rack 1EA Vita LED 1EA REFRIGERATOR Cover TV 1EA COMPARTMENT Rail 2EA Magic Crisper 1EA Vegetable Drawer 1EA OPTI Zone 1EA Egg Tray Dairy Corner DOOR BASKET Basket Door Basket Water Tank Tray Drawer BEA eebn E e e 0 Twist loe Maker Kt GEA Auto lce Maker n men 4 2 2 Wire e FREEZER COMPARTMENT I 2 Ref No GB71 43 38 ITEMS GB71 43 38 R X W GB71 43 38 R X Z_ GB71 43 38 P V W 595 W X 2010 H X 671 D 595 W X 1850 H X 671 D DIMENSIONS mm NET WEIGHT COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING system H Automatic Heater Defrost Heater Sheath Heater L Cord REFRIGERANT WEIGHT R600a FREOL 60MT 310 cc FREOL 55MT 180 cc COMPRESSOR PTC Starting Type EVAPORATOR Pin Tube Type CONDENSER Wire Condenser Removable Glass Shelf Bottle Rack 1EA Vita LED 1EA REFRIGERATOR Cover TV 1EA COMPARTMENT Rail 2EA Magic Crisper 1EA DEFROSTING DEVICE LUBRICATION OIL SEA or 2EA SEA or 2EA SEA or 2EA NI N m gt Vegetable Drawer 1EA OPTI Zone
41. ompartment FREEZER FRIDGE Temperature _ he Temperature Adjustment Adjustment Button for Bie Se EXPRESS FRZ OPTI ZONE Button for Freezer gt ECO FRIENDLY a Refrigerator Compartment Compartment CHILD Lock lt Best 88 LED gt FREEZER FRIDGE Express Eco Frz EXPRESS FRZ ECO FRIENDLY Friendly DOOR ALARM CHILD LOCK lt Better 88 LED gt FREEZER FRIDGE EXPRESS FRZ FRIENDLY Lock Button On Off Button DOOR ALARM CHILD LOCK lt Better Bar LED gt e Display Power saving Mode The display is always OFF without Lock Icon saving mode until door is opened or display button is pressed When 20 seconds has elapsed after closing door or pressing button the display turns OFF without Lock 36 2 Chill compartment Optional By pressing the button store vegetables fruits at relatively low conservation temperature or other types of food such as meat to be defrosted e Method to Use You can select optimum temperature range depending on types of food stored VEGE x e 2 Step of temperature selection including vegetables Fruits 2 C and meat and fish 1 C is available e Vegetable and cold storage foods requiring humidity Maintenance and meats fishes be more freshly stored depending on type of foods stored e When VEGE button s lamp is taken on opti zone is to chill compartment e Chill compartment temperature is maintained within 2 C 3 C regardless of amb
42. onnect the charging hose that is connected to the refrigerant R600a cylinder to the Schrader valve installed on the service tube Then charge the refrigerant R600a by controlling the Throttle valve When you do so do not fully open the Throttle valve because it may make damage to the compressor Gradually charge the refrigerant R600a by changing open and close the Throttle Valve 5g at each time The charging hose must use a one way valve to prevent the refrigerant refluence Close the Schrader valve cap after the refrigerant R600a is completely recharged After you completely recharge the refrigerant R600a perform the leakage test by using a portable leakage detector or soapy water Test the low pressure suction parts in compressor off time and high pressure parts in compressor on time If the leakages are found restart from the refrigerant R600a discharging process and repairs defects of leaks After the leakage test check the temperature of each parts of the cycle Check with hands if the CONDENSER and the case HOT LINE pipe that is contacted to the door gasket are warm Confirm that frost is uniform distributed on the surface of the EVAPORATOR SPECIFICATIONS 1 Ref No GB7143 ITEMS GB7143 A B V GB7143 G H Z GB7143 G H W 595 W X 2010 H X 671 D 595 W X 1850 H X 671 D DIMENSIONS mm NET WEIGHT COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING system H Aut
43. ormally WHOLE LEAKAGE Freezer room and Refrigerator don t cool normally J9VV1l PARTIAL CLOG Freeze room and Refrigerator don t cool normally Freezer room and Refrigerator don t cool 15 Ad Q3990 19 MOISTURE CLOG Cooling operation stops periodically COMP RESSION Freezer and Refrigerator don t cool NO COMP RESSION No compressing operation NOISSd3HdlNOO 3jAILLO333Q w Leakage Detection STATE OF THE EVAPORATOR Low flowing sound of Refrigerant is heard and frost forms in inlet only Flowing sound of Refrigerant is not heard and frost isn t formed Flowing sound of Refrigerant is heard and frost forms in inlet only Flowing sound of Refrigerant is not heard and frost isn t formed Flowing sound of Refrigerant is not heard and frost melts Low flowing sound of Refrigerant is heard and frost forms in inlet only Flowing sound of Refrigerant is not heard and no frost TEMPERATURE OF THE COMPRESSOR A little high more than ambient temperature Equal to ambient temperature A little high more than ambient temperature Equal to ambient temperature Low than ambient temperature A little high than ambient temperature Equal to ambient temperature REMARKS e A little Refrigerant discharges e Normal cooling is possible when injecting of Refrigerant the regular amount e No discharging of Refrigerant Nor
44. peration status if cold air comes out after opening the doors of the R Room Protective Logic Trip To protect the compressor from abnormal operation this logic is used to temporally stop the refrigerator when abnormal operation occurs and to re operate it after abnormal signal disappears Compressor protection Logic Table Requirement Waiting Time The number of LED blinking Stroke Trip Inv Piston overruns the Piston overruns the designed range Piston overruns the designed range Current Trip Current overruns the designed range ja IPM pin 14 output voltage low IPM Fault E Inv IPM Short High current input or low 90 7 voltage input x If LED of PCB is blinking Refer to next page 18 3 LED blinks two times then repeats Stroke Trip Blink Blink OFF Blink Blink OFF Purpose Prevent abnormally long piston strokes Case 1 If compressor doesn t work and LED blinks Cause Possibly harness from compressor to PCB might be defective Case 2 If compressor works intermittently and LED blinks Cause Condenser Fan or Freezer Fan is not running Sealed system problem such as moisture restriction restriction at capillary tube or refrigerant leak gt Logic Compressor is forced to off and then tries to restart after 1 minute Protection Blink 2 times logic Stroke Trip Check B2 N 0 I Harness N Y N Connecting
45. racket and then remove the Fan Motor Assembly 2 Freezer 1 Remove all of the freezer compartment Involved wire shelf ice maker Remove two screws in Grille Fan Pull out the Grille Fan and Shroud F Disconnect the Housing of lead wire Remove three screws in Grille Fan Separate Shroud F to the Grille Fan Loose three screws fixed to the Bracket Pull out Bracket and then remove the Fan Motor Assembly Fan Motor Assembly can t separate FAN MOTOR ASSEMBLY HEATER T SHEATH BRACKE 5 DEFROST CONTROL ASSEMBLY Defrost Control Assembly consists of Thermistor and Fuse Melting Thermistor functions to defrost automatically and it is attached to metal side of the Evaporator and senses temperature Fuse Melting is a kind of safety device for preventing overheating of the Heater when defrosting At the temperature of 77 C it stops the emission of heat from the Heater 1 Pull out the Shroud F after removing the Grille Freezer Pull out the Grille Fridge 2 Separate the connector connected with the Defrost Control Assembly and replace new one Thermister Fuse Melting Figure 12 14 6 FRIDGE HEATER SHEATH In this refrigerator Heater Sheath is used for defrosting heater During heating the temperature of heater rises about 150 200 Therefore be careful not to
46. re of Freezer 30min F 20min Sensor 10min OFF R 10min Failure of 30min ON F 20min Refrigerator Sensor 10min OFF R 10min Failure of Freezer NO Defrost Sensor Defrosting Failure of Refrigerator Defrost 9 Defrosting Sensor Poor of Freezer Defrost Poor of Refrigerator Defrost Failure of Fan Motor Every at Freezing 30min Compartment On Off Failure of Fan Motor at Refrigerator 30min Compartment On Off Failure of Fan Motor at Mechanical Room On Off Failure of Communication 43 PCB Picture 1 Main PCB CON3 EBR652501 44 2 Display PCB FREEZER 21 Pro WATER OPTI ZONE Gk EXPRESS FRZ G5ECO FRIENDLY gt DOOR ALARM MEAT cGy CHILD LOCK 6 FREEZER OO EXPRESS FRZ OPTI ZONE ECO FRIENDLY VECE C DOOR ALARM vum qA CHILD Lock FREEZER FRIDGE EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK FREEZER FRIDGE 17 18 19 20 21 22 23 EXPRESS FRZ ECO FRIENDLY DOOR ALARM CHILD LOCK 45 Troubleshooting With Error Display 8 W 34 M M M M MM M M FREEZER FRIDGE 1 Freezer Sensor Error FS Checking flow Result amp SVC Action Check the Blue to Blue SVCActio Action IPL the sensor OFF Open Replace the refrigerator Check the Temp and resistance Table 1 Temperature table 1 gt _ lt 5 gt
47. scratching paint Set screws down by their related parts to avoid using them in the wrong places e Provide a non scratching work surface for the doors IMPORTANT Once you begin do not move the cabinet until door swing reversal is completed These instructions are for changing the hinges from the right side to the left side if you ever want to change the hinges back to the right side follow these same instructions and reverse all references to left and right Befor Removing the Doors empty and Remove all the Door Baskets of both Refrigerator Freezer Doors including the Bank Dairy Close both doors before removing hinge pins A Warning Electric Shock Hazard Disconnect electrical supply to refrigerator before installing Failure to do so could result in death or serious injury Caution Do not let either door drop to the floor Doing so could damage the Door Stop 10 1 2 3 4 Remove screws 3 after removing a CAP 2 from the side of the refrigerator room HANDLE 1 The freezer room HANDLE 5 may be also disassembled in a same may as the refrigerator room HANDLE 1 Remove the screws 6 in the DECO COVER 7 Remove the DECO COVER 7 and move the COVER HINGE 8 to side of DECO COVER 7 Disassemble the Housing Connector 9 inside of the DECO COVER 7 Remove the screws 10 in the COVER PWB 11 and remove the COVER PWB 11 Remove the screws 12 in the TOP COVER FRONT 13 and remove the TOP COVER FRON
48. t temperature below Put in foods after cooled down Don t open the door too often and close it firmly Set the control to mid position Place foods in high temperature section Front Part Set the control to mid position Set the control to warm position Seal up liquid foods with wrap Put in foods after cooled down Don t open the door too often and close it firmly Wipe dew with a dry cloth This occurrence is solved naturally in low temperature and humidity Fill up the gap Adjust the Adjust Screw and position in the firm place Remove the objects Fix it firmly on the original position Place the cover at the original position Clean the door packing Position in the firm place and adjust the Adjust Screw Keep foods not to reach the door Clean the inside of the set Wrap smelly foods The new products smells of plastic but it is eliminated after 1 2 weeks e In addition to the items described left refer to the followings to solve the complaint Check if dew forms in the Freezer Check Refrigerating Cycle Check the Damper Control Defrosting is poor The cycle is faulty The operation of the Damper Control is poor Replace the Components of defrosting circuit Repair the cycle Replace the Damper Control 32 3 REFRIGERATING CYCLE Troubleshooting Chart STATE OF THE SET PARTIAL LEAKAGE Freezer room and Refrigerator don t cool n
49. tural gas refrigerant CH CH3 3 e Since R600a is same series as butane gas there is danger of fire when discharged into air at appropriate concentration extreme handling is required for heavy repair of cycle Explosion concentration 8 8 4 Vol Burning temperature 494 C 3 Features of R600a Refrigerant With refrigerant quantity of 60 or so for the refrigerator using R134a as refrigerant Large vacuum level at suction pressure at low pressure side e COMP capacity of the refrigerator using R609a as refrigerant is large by 1 7 times than that of the refrigerator using R134a Labels as in Figure are displayed at the compressor of a refrigerant for R600a and the back plate of refrigerator Warning sign according to ISO 3864 4 Location and Environment for Heavy Repair Check that drafting and air ventilation are well done at a working area and perform work after making drafting and air ventilation smooth use refrigerant return bag indoors Check that there are fire appliances or heating source around the working area and then remove them before work Since R600a refrigerant is very inflammable they should not be discharged indoors Be sure to follow heavy repair SVC procedures during work 5 Heave Repair Work Tool R600a refrigerant e Bombe Pinch Pliers e Refrigerant Discharge Hose e Refrigerant Return Bag Vacuum Pump Handy Welding Machine Charging Tube Leakage Tester e
50. valve welding part So perform service in following service method 1 Replace 3wasy valve ASSY where refrigerant leakage occurs at the joint pipe b part connected with the service valve of valve welding part For unavoidable welding wrap the body part of valve with a water towel so that delivery of welding heat is minimized 100 C or less 2 Service in replacement of valve valve failure Perform service in the same method as above 3 Other cautions Dryer side R Room lt Sky blue gt 1 Pipe for capillary tube should be welded through insertion by 20 3 3mm For preventing clogging during welding 2 Take care since inner ejecting objects may be damaged if falling a valve or giving a strong shock Poor operation and leakage quantity may be increased due to damage of inner parts 3 Entirely remove and check ice formation which occurred in Eva before or after improvement work for non insertion of 3 way valve housing defect or shortage of goods defective welding 29 CIRCUIT DIAGRAM CIRCUIT DIAGRAM IIUI WATER TANK SENSING S W PUMP MOTOR ICE MAKER MOTOR ICE MAKER TEST S W ICE MAKER STOP S W ICE MAKER SENSOR Bie ENNEEEN IS rS SP re Od O71 GO PO CO CO O N O O17 CON oO coe zm R FAN VILED MOTOR M SENSOR RD SENSOR 585 492 FD SENSOR
51. ve ingredients and boil until they are transformed into liquid LOKRING Figure 23 24 1 Both of the tube is inserted up to the stop 2 Both of the LOKRING is pushed up to the stop 3 The bending point is not too close to the joint ending 4 During the assembly it is important that both ends remain completely within the joint DRIER ASM 1 Assemble the drier within 30min after unpacking 2 Keep the unpacked drier at the temperature of 80 100 C VACUUM 1 When measuring with pirant Vacuum gauge the charging M C vacuum degree is within 1 Torr 2 If the vacuum degree of the cycle inside is 10 Torr below for low pressure and 20 Torr for high pressure it says no vacuum leakage state 3 Vacuum degree of vacuum pump must be 0 05 Torr below after 5 min 4 Vacuum degree must be same to the value described item above for more than 20 min DRY AND AIR 1 The pressure of dry air must be more han NITROGEN 12 16kg cm GAS 2 Temperature must be more than 20 70 C 3 Keep the pressure at 12 6kg cm also when substituting dry air for Nitrogen Gas REMARKS Recommend H34 containing 34 Ag in the Service Center Make amount for only day Holding period 1 day Close the cover of container to prevent dust putting in the FLUX Keep it in a stainless steel container For a hermetically sealed metal metal connection the tube ends have to be clean LOKPREP is distributed all of out surface of the tube
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