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LG WM2901H*A Series User Manual

LG WM2901H*A Series
68 pages
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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM2901H*A
Website:http://biz.lgservice.com
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LG WM2901H*A Series Specifications

General IconGeneral
TypeFront Load Washer
Capacity4.5 cu. ft.
Energy Star CertifiedYes
Number of Wash Cycles14
Steam WasherYes
Delay StartYes
Steam FunctionYes
Spin Speed1300 RPM
ColorWhite
Width27 inches
Height39 inches

Summary

1. SPECIFICATIONS

2. FEATURES & TECHNICAL EXPLANATION

2-1. FEATURES

Overview of the washing machine's key features and their benefits.

2-2. NEURO FUZZY WASHING TIME OPTIMIZATION

Explains how the machine optimizes washing time using fuzzy logic.

2-3. WATER LEVEL CONTROL

Details the water level control system using a pressure sensor.

2-4. DOOR CONTROL

Describes the operation and safety features of the door lock mechanism.

2-5. THE DOOR CAN NOT BE OPENED

Lists conditions under which the washing machine door cannot be opened.

2-6. DOOR LOCKED LAMP LIGHTS

Explains the conditions for the door locked indicator light activation.

2-7. CHILD LOCK

How to use the child lock feature to prevent unintended operation.

2-8. WATER CIRCULATION

Describes the water circulation function during wash and rinse.

2-9. STEAM

Information on the steam function for tough stains and sanitization.

2-10. DRUM LIGHT

Details on the operation and activation of the internal drum light.

3. PARTS IDENTIFICATION

ACCESSORIES

Lists and illustrates the included accessories for the washing machine.

4. INSTALLATION & TEST

STANDARD INSTALLATION

Step-by-step guide for the standard installation process of the appliance.

HOW TO CONNECT THE INLET HOSE

Instructions for correctly connecting the water inlet hoses to prevent leaks.

CONNECT THE DRAIN HOSE

Guidelines for properly connecting the drain hose to ensure effective drainage.

CONNECT POWER PLUG

Procedures for safely connecting the washing machine to the power supply.

7 TEST OPERATION

5. OPERATION

5-1. CONTROL PANEL FEATURES

Detailed explanation of the washing machine's control panel buttons and displays.

Option Button

Usage of option buttons for special functions like STEAM, DELAY WASH, etc.

Wash/Rinse, Spin speed, Soil Level, Beeper Button

How to adjust wash/rinse temperature, spin speed, soil level, and beeper settings.

5-2. Cycle Guide

Guide to selecting appropriate wash cycles based on fabric type and soil level.

5-3. SPECIAL FUNCTIONS

Instructions for activating special functions like Child Lock, Drum Light, and Tub Clean.

5-4. Explanation of each process

Detailed explanation of the internal processes performed during a wash cycle.

6. WIRING DIAGRAM / PROGRAM CHART

PROGRAM CHART

Visual chart detailing wash cycles, steps, and approximate timings.

7. TEST MODE

7-1. SAFETY CAUTION

Important safety precautions to follow before and during testing.

7-2. LOAD TEST MODE

Procedure for entering and operating the load test mode for diagnostics.

8. TROUBLESHOOTING

8-1. SAFETY CAUTION

Critical safety warnings for troubleshooting procedures.

8-2. ERROR MODE SUMMARY

Summary of error codes, symptoms, and causes displayed by the machine.

8-3. TROUBLESHOOTING SUMMARY

Overview of troubleshooting steps for common issues and component testing.

8-4. TROUBLESHOOTING WITH ERROR

Detailed troubleshooting steps for specific error codes displayed by the washer.

8-5. TROUBLESHOOTING ELSE

Troubleshooting for issues not covered by specific error codes, like power or button problems.

NO POWER

Steps to diagnose and resolve issues related to the machine not receiving power.

BUTTON DOESN'T WORK

Troubleshooting steps if control panel buttons are unresponsive or stuck.

VIBRATION & NOISE IN SPIN

How to address excessive vibration or noise during the spin cycle.

VIBRATION SENSOR CHECK

Procedure for checking the vibration sensor for proper operation and connectivity.

DETERGENT DOES NOT FLOW IN

Steps to troubleshoot why detergent is not being dispensed correctly into the wash.

LIQUID DETERGENT/SOFTENER/BLEACH DOES NOT FLOW IN

Troubleshooting for issues with dispensing liquid detergent, softener, or bleach.

ABNORMAL SOUND

Guidance on identifying and resolving abnormal noises originating from the washing machine.

9. COMPONENT TESTING INFORMATION

9-1. FILTER ASSEMBLY (LINE FILTER)

Testing procedures for the line filter component.

9-2. DOOR LOCK SWITCH ASSEMBLY

Testing procedures for the door lock switch assembly.

9-3. STATOR ASSEMBLY

Testing procedures for the stator assembly of the motor.

9-4. PUMP MOTOR ASSEMBLY

Testing procedures for the drain and circulation pump motor assembly.

9-5. INLET VALVE ASSEMBLY

Testing procedures for the water inlet valve assembly.

9-6. HEATER ASSEMBLY

Testing procedures for the wash and steam generator heater assemblies.

9-7. THERMISTOR ASSEMBLY

Testing procedures for the wash and steam generator thermistor assemblies.

9-8. STEAM GENERATOR ASSEMBLY

Information on testing the steam generator assembly components.

9-9. LAMP

Procedure for testing the drum lamp and its electrical connections.

9-10. VIBRATION SENSOR ASSEMBLY

Testing procedures for the vibration sensor assembly.

10. DISASSEMBLY INSTRUCTIONS

CONTROL PANEL

Step-by-step guide to disassembling the washing machine's control panel.

MAIN PWB ASSEMBLY

Instructions for safely removing and disassembling the main PCB assembly.

DISPENSER ASSEMBLY

Guide to disassembling the detergent dispenser unit.

NOISE FILTER

Steps for disassembling the noise filter component.

CABINET COVER

Instructions for removing the outer cabinet panels.

DOOR

Steps to disassemble and remove the washing machine door.

DOOR LOCK SWITCH ASSEMBLY

Guide for disassembling the door lock switch mechanism.

PUMP

Instructions for disassembling the water pump assembly.

HEATER

Steps for disassembling the heating element.

THERMISTOR

Guide for disassembling the thermistor temperature sensor.

WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB

Procedure for removing foreign objects lodged between the drum and tub.

LAMP ASSEMBLY

Instructions for disassembling the internal drum lamp assembly.

MOTOR/DAMPER

Steps for disassembling the motor and damper components.

Checking the TSG (TURBO STEAM GENERATOR)

How to check the Turbo Steam Generator for faults.

TSG (TURBO STEAM GENERATOR)

Procedure for disassembling the Turbo Steam Generator unit.

11. EXPLODED VIEW

11-1. CABINET & CONTROL PANEL ASSEMBLY

Exploded view of the cabinet and control panel components.

11-2. DRUM & TUB ASSEMBLY

Exploded view illustrating the drum, tub, and related parts.

11-3. DISPENSER ASSEMBLY

Exploded view of the detergent dispenser system.

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