LG GC-B414 Series Service Manual
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LG GC-B414 Series Service Manual

LG GC-B414 Series Service Manual

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CONFIDENTIAL
http://biz.lgservice.com
REFRIGERATOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY
PRECAUTIONS" IN THIS MANUAL.
GC-B414*
GC-B411*
Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
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  • Page 1 CONFIDENTIAL http://biz.lgservice.com REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. GC-B414* GC-B411* Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes. - 1 -...

  • Page 2: Table Of Contents

    Especially if the refrigerant is R600a, there are no fire or move with care to avoid hitting the upper door. heat sources. (No smoking) - 2 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 3: Servicing Precautions

    Confirm that frost is uniform distributed on the includes 3min of the pump running->pump off->30sec of the surface of the EVAPORATOR. compressor running. - 3 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 4: Specifications

    Dairy Corner Basket DOOR BASKET Water Tank Guide Bottle Flap Cover Twist Ice Tray Ice Bucket FREEZER Cover Tray COMPARTMENT Wire Shelf Drawer - 4 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 5 Dairy Corner Basket DOOR BASKET Water Tank Guide Bottle Flap Cover Twist Ice Tray Ice Bucket FREEZER Removable Glass Shelf COMPARTMENT Wire Shelf Drawer - 5 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 6: Parts Identification

    Door Removable Glass Shelf Bottle Rack Egg Tray Snack Tray (Optional) Easy Handle Folding Shelf (Optional) Removable Glass Shelf Vegetable Drawer Leveling Screw - 6 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 7 PARTS IDENTIFICATION Model Name : GC-B414** LED Lamp Removable Twist Ice Tray Glass Shelf (Optional) Ice Bucket (Optional) Easy Handle Freezer Drawers Leveling Screw - 7 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 8: Instructions For Reversing Door Swing

    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. - 8 - - 10 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 9 Then attach a label on the hole of screw on the right side. (20) (21) (22) (16) (17) (18) (16) (19) (14) (17) (13) (17) (12) (10) (15) (12) - 9 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 10 Assemble them again and put some lubricant onto their surface. L U B R I C A N T Note: Installing in pair is not covered by the warranty. - 10 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 11: Instructions For Installing Pair

    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. - 11 - - 13 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 12 - 12 - Copyright 2021 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 13 2) Remove the 3 screws (3) fastened to the top of the door (1). 3) Remove the panel (4) from the door (1) by pulling the area indicated by the arrow and lifting it upwards. - 13 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 14 Pull down until you hear a click. 5) 도After tightening the 3 screws (3) removed from the top of the door (1), assemble the deco (2). - 14 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 15: Disassembly

    5) Separate Shroud F to the Grille Fan. 6) Loosen three screws fixed to the Fan assembly. FAN ASSEMBLY SHROUD COVER, DEODORIZER DEODORIZER GRILLE,FAN - 15 - - 17 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 16: Defrost Control Assembly

    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 - 16 - - 18 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 17: Compressor

    However, resistance values are measured when measuring ① power and ② full but measuring is meaningless since they cannot become criteria for determining defect (measuring not required). Caution or so may occur.) Connect harness to compressor BMK090NAMV - 17 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 18 20” current input, or low voltage input) A-Inv. Communication Checksum error A-Inv. Error If LED of PCB is blinking, Refer to next page. - 18 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 19 Comp Comp OK Comp Cycle Comp Comp Test Mode Replace PCB Leak? Check Check? Change 1 Input Comp OK Cycle Replace PCB Check - 19 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 20 FCT0 : When same trip occurs after power reset, change PCB. Because it is occurred by overvoltage (more than 2.5V) at voltage and current sensing parts, PCB has to be changed. - 20 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 21 Check C Replace Driver PCB Cycle Check E Cycle Repeat Reset Stroke Trip Compressor Replace Check Procedure Power Occur? Damage Compressor Check C - 21 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 22 (No Connect Trip) Check Harness Compressor Replace Compressor Connecting Damage Check Compressor Doesn’t work Check Replace Reset Stroke Trip Repeat Power Occur? Check Procedure - 22 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 23 (Lock Piston Trip) Compressor Check B Check B3 Reset Compressor Compressor Hi side Power Doesn’t work Doesn’t work restriction Sealed system Repeat Repair Check Procedure - 23 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 24 Replace Driver Check B5 Cycle Check E Cycle Repeat Compressor Reset Replace Current trip Check Damage Power Compressor Occur? Procedure Check C3 - 24 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 25 Purpose: Prevent high current due to IPM Short Cause: Damaged IPM (Dead Short) Test for a dead short at Point A with a VOM. - 25 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 26 Communication Error : When same trip occurs after power reset, change PCB. Because Program is not matching in MICOM, program has to be rewritten or PCB has to be changed. - 26 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 27: Heavy Repair Method Of Refrigerator By Application Of Refrigerant

    R600a refrigerant Bombe Pinch Pliers Refrigerant Discharge Hose Refrigerant Return Bag Vacuum Pump Handy Welding Machine Charging Tube Leakage Tester Drier - 27 - - 36 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 28: Heavy Repair Svc Method

    * Suction Pipe Comp depending on the shape and Charging tube, discharge pipe, but make sure the location of the required subject to change. Recipro Compressor Type - 28 - - 37 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 29 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.) - 29 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 30 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.) - 30 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 31: Refrigerant Charging

    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.) - 31 - - 40 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 32 Clogged cycle cooler is cold. capillary tube Leakage of Leakage of Check of refrigerant welding part leakage part Leakage of radiator - 32 - - 41 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 33: Circuit Diagram

    MOTEUR DE VENTILATEUR R (C) TENSION CORDON D'ALIMENTATION FUSIBLE (250 VCA/8,10 A) AFFICHAGE CCI DE LA FONCTION SMART DIAGNOSIS Wi-Fi Module SELON LE MODÈLE L:LIVE - 33 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 34: Troubleshooting (Mechanical Part)

    EVAPORATOR. of the following components. Check current flowing of the following Defect on Heater, Replace the Heater, components. Sheath Sheath - 34 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 35: Service Diagnosis Chart

    Check Refrigerating Repair the cycle. faulty. Cycle. The operation of Check the Replace the Damper Control the Damper Damper Control Control is poor. - 35 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 36: Refrigerating Cycle

    Compressor. and check cooling operation. No or much amount Clogged by dust. Gas leakage. Check Compressor Frost formed normally (Check the leakage point) - 36 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 37 (1) Check if gas leaks with soapy water. COUPLER Coupler. PIPE tightly with the lid so that dust or humidity is not inserted. - 37 - - 47 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 38 Figure 23. LOKRING Figure 24. LOKRING TOOL - 38 - - 48 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 39: Micom Function & Pcb Circuit Explanation

    T h e d i s p l a y i s a l w a y s O F F w i t h o u t L o c k I c o n , u n t i l d o o r i s o p e n e d . - 39 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 40: Express Freeze

    Express Frz. operation stops and the refrigerator returns to the previous temperature setting. Freezer Temperature Express Freeze ECO Friendly Freezer Temperature Vacation Express Freeze Express Freeze - 40 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 41: Express Cool

    E xpress Cool. operation stops and the refrigerator returns to the previous temperature setting. Fridge Temperature Express Cool ECO Friendly Fridge Temperature Express Cool Vacation Express Cool - 41 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 42 When you come back from E c o F riendly(Vacation), press the E c o F riendly(Vacation) model o so that other buttons work and the refrigerator returns to previous temperature setting. - 42 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 43 N O T E : T h i s f u n c t i o n i s a p p l i e d o n l y t o s o m e m o d e l w h i c h h a v e t h i s f u n c t i o n . - 43 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 44 -. Returns to normal in case of no input for 5 seconds (no compensation, no sound). ensation, no sound). ○○○○○●○ ○○○○●●○ ○○○○●○○ ○○○●●○○ ○○○●○○○ ○○●●○○○ ○○●○○○○ ○●●○○○○ ○●○○○○○ - 44 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 45 -. “Output noise" occurs when reward is completed. -. Returns to normal in case of no input for 5 seconds (no compensation, no sound). 5. Returns to the Idle screen. - 45 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 46 -. Returns to normal in case of no input for 5 seconds (no compensation, no sound). ○○○○○●○ ○○○○●●○ ○○○○●○○ ○○○●●○○ ○○○●○○○ ○○●●○○○ ○○●○○○○ ○●●○○○○ ○●○○○○○ - 46 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 47 -. “Output noise" occurs when reward is completed. -. Returns to normal in case of no input for 5 seconds (no compensation, no sound). 5. Returns to the Idle screen. - 47 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 48: Micom Error Code

    Error temperature isn’t under Cooling power the 4.5deg within 10min, after LQC mode started Check the connection Cut or short circuit wire - 48 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 49: E Rror C Ode S Ummary

    º º ( E x t e r n a l D i s p l a y o n l y ) - 49 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 50: Pcb Picture

    PCB Picture 1. Main PCB P/No&MFG Picture EBR311775** - 50 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 51 2. Display PCB Picture P / N o EXTERANAL DISPLAY （OPTIONAL） INNER DISPLAY （OPTIONAL） 8 8 I D i s p l a y - 51 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 52: Troubleshooting With Error Display

    (● : LED ON, ○ : LED OFF) INNER MICOM CON7 Resistance[Ω] Short Open CON7 Other Normal 9pin&10pin Resistance[Ω] CON7 9pin&10pin 23F/-5C 32F/0C 41F/5C 50F/10C 19.5k 59F/15C - 52 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 53 Is resistance 0Ω (Sensor short)? 41F/5C 50F/10C 19.5k 59F/15C Replace the refrigerator Check the Sensor resistance. Is resistance OFF (Sensor open)? Explain to customer - 53 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 54 (● : LED ON, ○ : LED OFF) INNER MICOM CON7 Resistance[Ω] Short Open CON7 Other Normal 13pin&14pin CON7 Resistance[Ω] 13pin&14pin 23ºF/-5ºC 32ºF/0ºC 41ºF/5ºC 50ºF/10ºC 19.5k 59ºF/15ºC - 54 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 55 Is resistance 0Ω (Sensor short)? 32ºF/0ºC 41ºF/5ºC 50ºF/10ºC 19.5k 59ºF/15ºC Replace the refrigerator Check the Sensor resistance. Is resistance OFF (Sensor open)? Explain to customer - 55 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 56 (● : LED ON, ○ : LED OFF) INNER MICOM CON7 Resistance[Ω] Short Open CON7 Other Normal 7pin&8pin CON7 Resistance[Ω] 7pin~8pin -22F/-30C 130k -13F/-25C 100k -4F/-20C 5F/-15C 14F/-10C 23F/-5C 32F/0C - 56 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 57 Is resistance 0Ω (Sensor short)? 5F/-15C 14F/-10C 23F/-5C 32F/0C Replace the refrigerator Check the Sensor resistance. Is resistance OFF (Sensor open)? Explain to customer - 57 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 58 (● : LED ON, ○ : LED OFF) INNER MICOM CON13 Voltage[V] TESTMODEL1 CON13 11.4~12.6V 5pin~6pin CON13 Not0V or 5V 6pin~7pin CON13 Not0V or 5V 6pin~8pin - 58 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 59 Not0V,5V 6pin~7pin Change the CON13 Not0V,5V Fan motor Check the Fan motor. 6pin~8pin Rotate fan using hand. It feel sticky? Explain to customer - 59 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 60 (● : LED ON, ○ : LED OFF) INNER MICOM CON2 Part Resistance[Ω] FUSE-M& DefrostHeater 73(±5％)Ω at 115V DefrostSensor Normal TESTMODE1 Voltage[V] CON2 3pin~5pin TESTMODE3 Voltage[V] CON2 110V-120V 3pin~5pin - 60 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 61 Main PCB Is voltage 0V? Change the Sensor Check the Defrost control part. Is Defrost Sensorresistance TESTMODE1 Voltage[V] Normal? CON2 3pin~5pin Explain to customer - 61 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 62 ○ (● : LED ON, ○ : LED OFF) INNER MICOM CON13 TESTMODE1 Voltage[V] CON13 11.4V~12.6V 5pin~6pin CON13 Not0V,5V 6pin~7pin Not0V,5V CON13 6pin~8pin - 62 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 63 Not0V,5V 6pin~7pin Change the Not0V,5V CON13 Fan motor Check the Fan motor. 6pin~8pin Rotate fan using hand. It feel sticky? Explain to customer - 63 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 64 ○●○○○○● (● : LED ON, ○ : LED OFF) INNER MICOM CON13 TESTMODE1 Voltage[V] CON13 11.4V~12.6V 1pin~2pin CON13 Not0V,5V 2pin~3pin Not0V,5V CON13 2pin~4pin - 64 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 65 Not0V,5V 2pin~3pin Change the Not0V,5V CON13 Fan motor Check the Fan motor. 2pin~4pin Rotate fan using hand. It feel sticky? Explain to customer - 65 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 66 CON9 Pin – 3rd Pin CON9 Not 0 or 5V Pin – 5th Pin CON9 Not 0 or 5V Pin – 6th Pin - 66 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 67 Check voltage of CON9 Wi-Fi On Voltage [V] Replace Main PCBA CON9 Pin Pin Change Wi Fi module Check intensity of Wi-Fi router Explain to customer - 67 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 68: Troubleshooting Without Error Display

    1.Refrigeratorroom 1.Checktherefrigeratordoorswitchsticky lampdoesn’twork 2.CheckthedoorS/Wresistance 3.ChecktheLEDLamp CON12 Door close Door open Door S/W Resistance Door S/W Resistance CON12 CON12 1 pin pin ~ 2 - 68 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 69 Explain to customer Change the Check the PCB Voltage. Is CON12 1 pin ~ 2 voltage below voltage status? CON12 DoorStatus Voltage[V] Closed Open - 69 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 70 1.Check the Room(R/F) sensor resistance refrigeratorroom 2.Checktheairflow 3.ChecktheairTemperature 4. Check the Room(R/F) sensor resistance CON7 CON13 TESTMODE1 Voltage[V] CON13 11.4~12.6V 5pin~6pin Not0Vor5V CON13 6pin~7pin CON13 Not0Vor5V 6pin~8pin - 70 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 71 Freezer Check the air flow. Windy? Control. Go to 5 CON13 TESTMODE1 Voltage[V] Not0Vor5V CON13 6pin~7pin CON13 Not0Vor5V 6pin~8pin 7 Explan to customer - 71 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 72: Reference

    ※ ● : LED On, ○ : LED off 2. How to remove Terminal Position Assurance (TPA) * After measure the value, you should put in the TPA again - 72 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 73 24.13k˜ 2.40V 50°F(10°C) 19.53k˜ 2.14V 59°F(15°C) 15.91k˜ 1.89V 68°F(20°C) 13.03k˜ 1.66V 77°F(25°C) 10.74k˜ 1.45V 86°F(30°C) 8.89k˜ 1.27V 95°F(35°C) 7.40k˜ 1.10V 104°F(40°C) 6.20k˜ 0.96V - 73 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 74 19.53k˜ 3.31V 59°F(15°C) 15.91k˜ 3.07V 68°F(20°C) 13.03k˜ 2.83V 77°F(25°C) 10.74k˜ 2.59V 86°F(30°C) 8.89k˜ 2.35V 95°F(35°C) 7.40k˜ 2.13V 104°F(40°C) 6.20k˜ 1.91V 113°F(45°C) 5.21k˜ 1.71V - 74 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 75: Disassembly Guide

    2. Attach the cover and hook first. adjust the position of the outer hook. 3. Press the cover to 4. Cover assembly assemble the outer hook. complete. - 75 - Copyright © 2022 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 76: Exploded View

    EXPLODED VIEW T he parts of refrigerator and the shape o f each part are subjec t to change in different localitie s. 103A 109C 103B 411B 120A 102A 406F 281C 210F *When “153C” is serviced, 411C It has to provide “153D” together. 153C 153D *Option...
  • Page 77 EXPLODED VIEW 281B S003 234D 136M 234A 281A 136F 136M 231C 241A 231A 136M 241A 136E 241A 137E 235A 241C 210B 140B 284D 140A 241C 206D 167P 170A 205F 206D 167R 233A 136Q 136H 136D 211A 210A...
  • Page 78 EXPLODED VIEW 410L 411A 501A 501F 314A 317A 304A 318A 316A 310B 310A 323B 420A 307A 329C 319C 105A 319A...
  • Page 79 EXPLODED VIEW The parts below are for pair installation to install refrigerator and freezer in pairs. 284A 284B 284G 284H 284C 284K...
  • Page 80 May, 2022 Printed in China Copyright 2022 LG Electronics Inc. All rights reserved. Only training and service purposes . - 105 -...

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