LG LKIM08121V /00 Service Manual

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REFRIGERATOR

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

MODEL : LKIM08121V /00

GKIM08121V /00

CONFIDENTIAL

reserved. Only training and service purposes.

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Summary of Contents for LG LKIM08121V /00

Page 1 READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MODEL : LKIM08121V /00 GKIM08121V /00 Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 2: Table Of Contents
3. Take caution not to get water near any electrical components. 4. Use exact replacement parts. 5. Remove any objects from the top prior to tilting the product. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 3 Do not, under any circumstances, cut or remove the third (ground) prong from the power cord. Keep packing materials out of the reach of children. Packaging material can be dangerous for children. There is a risk of suffocation. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 4: Safety Instructions
Keep or dispose of the packing materials out of reach of children. Plastic packing materials pose a risk of suffocation. If connected to a circuit protected by fuses, use time delay fuse. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 5 The amount of refrigerant in your particular appliance is shown on the identification plate inside the appliance. Never start up an appliance showing any signs of damage. If in doubt, consult your dealer. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 6 Do not clean glass shelves or covers with warm water when they are cold. They may break if exposed to sudden temperature changes. SAVE THESE INSTRUCTIONS Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 7: Product Specifications
Overload protection device MRA12091-9201 Fan motor for condenser cooling Φ 130, 3BLADE Electric parts Left Kimchi Fermentation heater specifications Right Kimchi Fermentation heater Protection fuse CAPACITOR(CS Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 8: Installation
(If the floor is uneven, the refrigerator may produce noise.) ▶ Level the refrigerator by rotating the leveling legs on the left and right side located at the front. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 9 2. Gas pipe: Never use it for grounding as there is a risk of explosion. 3. Telephone line / lightning rod: It is very dangerous as these have high electrical current flows when lightning strikes. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 10: Circuit Diagram
Circuit Diagram Chapter 4: Circuit Diagram K227**16E LKIM08121V, GKIM08121V K227**15E K227**13E K227**11E K222**15E K222**11E Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 11: Micom Function And Circuit Description
3. When the display is locked, the button and other sounds are turned off. If the Lock button is pressed, the lock/ unlock icon blinks 3 times. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 12 Ferment Fermentation start Fermentation Complete 4. If a malfunction such as a sensor error occurs while in Fermentation Mode, the setting automatically reverts to Kimchi M. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 13 RROR 2. There is no power outage protection while in Fer. Mode, and settings will return to Kimchi M. (to avoid ", " " excessive fermentation). Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 14 4 mi n LEFT Satisfied with When returning Temperature 7 mi n All load from TEST MODE to a normal state 3 sec 3 sec LEFT Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 15 3. After a failure has occurred, once "Failure" is cleared from the Error CODE Display, the refrigerator will return to its normal status 4.The error CODE is displayed as left component 88 Segment, and the remaining LED lights turn off Error CODE Display Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 16 • If a sensor error is detected even during Test Mode function, reset operation. • When a communications defect occurs, the appliance will revert to the storage temperature set before the defect occurred. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 17 Holding the left compartment kimchi button and right compartment kimchi button simultaneously for more than 1 second will turn all the LED lights on. The LED display returns to its previous state once the buttons are released. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 18: Troubleshooting
If F 1 is shown on the DISPLAY, replace the MAIN PCB, otherwise explain to the customer. Turn the power off Tip: For the protection of MICOM Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 19 If F 1 is shown on the DISPLAY, replace the MAIN PCB, otherwise explain to the customer. Turn the power off Tip: For the protection of MICOM Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 20 RESULT Measuring Points Replace the main PCB. Pin1 to pin3 1 ~ 4 V PIN2(RD) PIN3(BK) Explain to the customer. Measuring Points RESULT Pin2 to pin3 Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 21 RESULT the all-on mode, and if it does Pin2 to 4 0 V or 5 V not, check the connector and explain it to the customer. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 22 Temperature ROOM JUMP WIRE compensation value JCR3 -1.0℃ Right Compartment -2.0℃ JCR4 -1.0℃ Perform temperature compensation by -1 ℃ by cutting the jump wire Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 23 Temperature ROOM JUMP WIRE compensation value JCR1 +1.0℃ Right +2.0℃ Compartment JCR2 +1.0℃ Perform temperature compensation by +1 ℃ by cutting the jump wire. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 24 Troubleshooting EBR829998 CON201 CON1 CON202 (Comp Micom Writing) CON102 CON3 CON2 CON7 CON4 CON5 CON10 (Main Micom Writing) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 25: Compressor
Comp 정상 기동시 LED 깜박이지 않음. the number of LED blinks (LED 깜빡임 횟수별 조치사항은 다음장 참조) (Refer to the next chapter for measures depending on the number of LED blinks) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 26 Major Is there Recheck repair leakage? IPM output Does it Replace > start? 80V ~ 20% Check defects (CHeck C) Major Is there Recheck repair leakage? Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 27: Refrigeration Cycle And Refrigerant
LED blinks two times normally Circuit 2. Replace PCB if the overvoltage problem persists error · · Blink -Blink-Off-Blink-Blink-Off-Blink-Blink-Off · · Repeat after step 1 Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 28 → Measures: Check the CC310 voltage, if outside of 2.2-2.8V, replacement PCB Check the Check whether protection LED blinks once logic (AD-Offset Error) Does the voltage Replace deviate from the spec.? (2.2-2.8V) Reset the power Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 29 Check for leakage and the cycle Recheck the Check the Does the Replace the Reset the inspection compressor current trip compressor power procedure failure occur? Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 30 Check point A Comp. does not damage of IPM Replace operate short IPM with naked Outpot > 80V- eyes Reset the Recheck the power inspection procedure Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 31 → Check for insulation breakdown: Measure the resistance between the Comp's Power terminal and the ground Fig. A Multi Tester Fig. B BMG089NHMV 9.0 ~ 18.0 Ω ※ Resistance may vary by several Ω depending on the ambient te Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 32 • When you determine there is a defect by measuring the resistance, if the PCB's COM201's MU & MV or MU & MW or MW & MU resistance value matches the value of page 31, motor winding can be determined as normal Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 33: General Information About The Product
▶ Removing the contact : For sounds made when objects periodically collide with each other, separate the two objects or affix the parts firmly. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 34 There could be a discrepancy between actual Monthly power consumption (kWh/month) = energy consumption and the energy consumption Measure(kWh/day) x 365day / 12month Caution displayed by the refrigerator. Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 35: Handling R600A Refrigerant During Major Repairs
• Pinch Pliers • Refrigerant Discharge Hose • Refrigerant Return Bag • Vacuum Pump • Handy Welding Machine • Charging Tube • Leakage Tester • Drier Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 36 ※ The position of the Suction Pipe, Charging Tube and Discharge Pipe needs to be checked since the their positions may vary depending on the shape of the Comp Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 37 Avoid welding repairs where cycle clogging is a known issue or the cause of errors is unclear. (For models using R600a refrigerant) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 38 • 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.) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 39 • 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 care since a discharge pipe may be hot.) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 40 Handling R600a Refrigerant During Major Repairs 9-3 Welding Reference Right Compartment Left Compartment Welding types Applied site Notes Copper alloy ①②③④⑤⑥⑦⑬⑭⑳ Silver alloy ⑧⑨⑩⑯ LOKRING ⑪⑫⑱⑲ Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 41 Plus room pipe 3way valve Valve housing not operation defect inserted Valve L/wire disconnected Valve unit defect Refrigerant Welding part Check leakage leakage leakage part Heat radiator leakage Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 42 (Poor operation and leakage quantity may be increased due Right Side Tube to damage of inner parts.) Left Side Tube (Green Color Tape) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 43: Method For Replacing The Deodorizer
⑨ The deodorant has been ⑦ 탈취제 삽입 완료 ⑧ Cover를 위로 강하게 ⑨ 탈취제 교환 완료 inserted strongly to fasten the replaced 눌러 Hook를 결합함 Hook Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 44: Understanding The Characteristics Of Each Part
Evaporator (Left compartment) Refrigerant Valve (Left compartment) Condenser (Right compartment) Evaporator (Right compartment) Suction Pipe (2) Operating structure Drive Coil outlet entrance (Exterior) (Internal Structure) (Drive circuit) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 45 (Right Compartment) compartment (Left Compartment) (Left Compartment) (Left Compartment) close close OPEN OPEN OPEN B Port (Right Compartment) C Port (Left Compartment) Sealed area (4) Operation characteristics Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 46 Kimchi Under- ripeness 2. Measure the resistance of both 2. The connector is 2. Terminal contact failure heater connectors using a Tester inserted → Severe fluctuation Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 47: Notes On Disassembling The Product
④ The same as 2 (Lower right part) ⑤ Remove the Frame Display ⑥ Remove the Harness 5. Frame, Disp 6. Harn e 5. Frame, Disp 6. Harn e Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 48: Exploded View And Service Parts List
641H 243A 604A 420B 604A 319C 500A 619A 641H 420A 502B 327B 420B 329C 317A 411A 323B 307A 310B 314A 304A 308A 312A 310A 309A 315A Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.

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