LG WM3997HWA Service Manual Download | Manualshive

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Open the door.

Disassemble the clamp assembly.

Tilt the cabinet cover.

Disconnect the door switch connector.

Disassemble the clamp assembly.

Disassemble the gasket.

Lift and separate the cabinet cover.

આ

NOTE :

When assembling the

cabinet cover, connect the door switch

connector.

5

6

7

8

9

10

11

LGE Internal Use Only

Copyright © 201

6

~ 201

7

LG Electronics Inc. All rights

reserved. Only training and service purposes.

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Summary of Contents for WM3997HWA

Page 1: ...c means publication modification copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual The material covered by this prohibition includes without limitation any text graphics or logos in this Service Manual Copyright 2016 2017 LG Electronics Inc All rights rese...

Page 2: ...69 MFL67307985 PRINTED IN KOREA ...

Page 3: ... CONTENTS LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 4: ...DOOR FRAME Chrome 12A WARNING Wash hands after handling WM3997H A 01 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 5: ...lted drum and extra large opening make it possible to load and unload clothing more easily Steam Washing Steam washing features upgraded washing performance with low energy and water consumption Automatic Wash Load Detection Automatically detects the load and optimizes the washing time Built in Heater Internal heater helps to maintain water temperature at its optimum level for selected cycles Chil...

Page 6: ...in the tub drains to a certain level water temperature washing time rinsing time the best washing performance spin rhythm time load size NEURO FUZZY selected washing temperature SENSING EFFECT PROCESSING DETERMINATION The door can be opened by pulling the door handle whenever washer is not in operation When the cycle is completed the DOOR LOCKED light will turn off If a power failure has occurred ...

Page 7: ...s set CHILD LOCK lights and all buttons are disabled except the POWER button You can lock the controls of the washer while washing CHILD LOCK lasts after the end of cycle If you want to deactivate this function Press and hold the Pre Wash button for 3 seconds 2 8 WATER CIRCULATION When washing and rinsing function of shower at the upper part of Gasket When washing it continuously operates for 3 mi...

Page 8: ...3 PARTS IDENTIFICATION Accessories LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 9: ...ons correctly STANDARD INSTALLATION The appliance should be installed as follows Remove the 4 shipping bolts with the supplied wrench Remove the lower boits fist It is easier that way Keep the shipping bolts and spanner for future use Insert the 4 caps provided into the hole Turn clockwise to raise counterclockwise to lower Turn the leveling feet to adjust the appliance Lower Higher REMOVE THE SHI...

Page 10: ...CONNECT THE INLET HOSE CONNECT THE DRAIN HOSE Make sure that the hose is not twisted CONNECT POWER PLUG The end of the drain hose should be placed less than 96 from the floor Avoid submerging the end of the hose Connect the power plug to the wall outlet Avoid connecting several electric devices as doing so may cause a fire Hot Cold LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All r...

Page 11: ... Check the automatic reverse rotation 4 Check the water supply Check if water is supplied through the detergent dispenser 7 Check the drain and spin functions Power off and the power on Press the SPIN SPEED button Press the START PAUSE button Check the spin and drain functions Listen for a click to determine if the door is unlocking 8 Press the START PAUSE button 9 Water removal If SERVICE is need...

Page 12: ...LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 13: ...LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 14: ...le Custom PGM Use this option to save a special combination of settings that you use frequently Wash Temp Selects the water temperature for the wash cycle Spim Speed Selects the spin speed Soil Level Selects a wash cycle by soil level LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 15: ...LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 16: ...17 7 TEST MODE SPIN SPEED SOIL LEVEL WASH RINSE DELAY WASH LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 17: ...18 8 TROUBLESHOOTING LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 18: ... the MAIN PWB ASSEMBLY is bad or unstable The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuited 8 EEPROM is out of order Displayed only when the START PAUSE button is first pressed in the Load Test Mode 9 g n i h s a w e l i h w d e p p o t s s i y l p p u s r e w o p e h t r e t f A E R U L I A F R E W O P machine is working the power is supplied rapidly 10 LGE...

Page 19: ... FILTER ASSEMBLY CIRC Replace MAIN PWB ASSEMBLY Reconnect Replace the MAIN PWB ASSEMBLY NO POWER 8 3 FAULT DIAGNOSIS AND TROUBLESHOOTING 1 Be careful of electric shock if disconnecting parts while troubleshooting 2 First of all check the connection of each electrical terminal with the wiring diagram 3 If you replace the MAIN PWB ASSEMBLY reinsert the connectors correctly CAUTION LGE Internal Use O...

Page 20: ...G G G G Oy G G G TYPUG G G G G G G G S G G G G U piyh pvuGMGuvpzlGpuGzwpu p G G G G SG G G UGh G G G SG G G G G G G G G G G UGh G G G G U p G G G G G G G SG G U G U G GOYG GZG PG G UGv G S G SGy Rz G G G V G G U G G G G G G G S G G G G UG LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 21: ...epeatedly to set spin speed 600 800 1000 1200 rpm and check if there is vibration and noise 8 If there is no vibration and noise increase the spin speed by pressing Beeper button 9 If there is vibration and noise rotate the Cycle selector knob clockwise to reduce the Spin Speed reduce by 50 and 100 rpm In case of 600 rpm it can not reduce the spin speed 10 If vibration and noise are reduced press ...

Page 22: ...23 5 4 5 4 Dry Dry 110 120 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 23: ...24 Softener cap LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 24: ...25 HEATING WITHOUT WATER DRAIN MALFUNCTION 120 120 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 25: ...6 HEATING CONTINUOUSLY ABOVE THE SETTING WATER TEMPERATURE WASH HEATER TROUBLE 120 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 26: ...7 WILL NOT CIRCULATE WATER 120 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 27: ...8 1 1 2 SPIN TROUBLE 8 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 28: ...bellows Disassemble the cabinet cover and condensing bellows Is there any foreign object in the condensing bellows Disassemble the dry fan assembly and dry duct upper and remove foreign objects in duct and fan LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 29: ...30 120 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 30: ...ng 4 Pull out the drawer and unscrew 2 screws 5 Remove one screw 6 Lift the side the control panel assembly and pull it out 7 Unscrew the 8 screws from the control panel assembly 8 Disassemble the display PWB assembly TOP PLATE ASSEMBLY CONTROL PANEL ASSEMBLY DRAWER CONTROL PANEL ASSEMBLY DISPLAY PWB ASSEMBLY 9 DISASSEMBLY INSTRUCTIONS LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc A...

Page 31: ...essure switch assembly Remove the protective cover Unscrew 1 screw on the back Remove the main PWB Disconnect the connectors PROTECT COVER 1 2 3 4 5 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 32: ...GYG U G G G G G vwGiyhjrl U k G G G G Gwv ly jvykU Gj k G G G G G G U GYG G G G G G G U X Y Z 5 i Go GO sTirP y Go O TirP Go O oTirP i Go On TirP y Go OisTirP LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 33: ... a screw from the lower side of door Disassemble the door upward Open the door and disassemble the CLAMP ASSEMBLY Unscrew the 2 screws Be careful The door is heavy NOTE Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 34: ... filter cover Put a flat screwdriver or putty knife into the hinge slots at the bottom of the cover and pry it out Unscrew the screw from the lower side of the cabinet cover 1 2 3 4 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 35: ...nector Disassemble the clamp assembly Disassemble the gasket Lift and separate the cabinet cover આ NOTE When assembling the cabinet cover connect the door switch connector 5 6 7 8 9 10 11 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 36: ...he door and remove the gasket using the special gasket pliers Unscrew the 2 screws Disassemble the door upward આ NOTE Reconnect the connector after replacing the door switch assembly 1 3 1 2 2 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 37: ...heater THERMISTOR Disassemble the cabinet cover Unplug the white connector from the thermistor Pull it out by holding the bracket of the thermistor CAUTION When assembling the heater insert the heater into the heater clip on the bottom of the tub Tighten the fastening nut so the heater is secure CIRCULATION HOSE PUMP HOSE BELLOWS 1 2 3 1 2 3 1 2 3 LGE Internal Use Only Copyright 2016 2017 LG Elect...

Page 38: ...etc by inserting a long bar in the opening LAMP ASSEMBLY Unscrew 2 screws on the back of the top plate Pull the top plate backward and upward as shown TOP PLATE ASSEMBLY 1 2 3 1 Disconnect the connector 3 Disassemble the lamp assembly 4 2 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 39: ...assemble the back cover Remove the bolt Pull out the rotor 1 2 3 Unscrew the 2 screws from the tub bracket Remove the 6 bolts on the stator Unplug the 1 connectors from the stator 1 2 3 Disassemble the damper hinges from the tub and base 1 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 40: ...430 A100 A101 A104 A102 F215 F210 A450 A111 A110 A141 A150 A103 A220 A200 M410 A106 F110 A154 A152 8 EXPLODED VIEW 8 1 CABINET CONTROL PANEL ASSEMBLY A175 A156 A180 A181 LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 41: ...K360 K115 K141 K117 8 2 DRUM TUB ASSEMBLY K571 K572 K570 F315 F465 K125 F464 F464 F310 K121 K122 K550 K540 F461 K520 K105 K190 K516 K346 K348 K344 K347 K349 K345 K342 43 K361 K513 K511 K142 8 EXPLODED VIEW LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 42: ...F322 F323 F321 F180 Inlet Valve Filter SVC COLD BLUE HOT ORANGE 8 3 DISPENSER ASSEMBLY F170 F160 44 F432 F227 F340 F329 8 EXPLODED VIEW LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 43: ...M130 M312 M310 K311 K311 M230 M220 M101 M240 M210 M311 M120 M121 M235 8 4 Dry Duct ASM 45 8 EXPLODED VIEW LGE Internal Use Only Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

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