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LG F12U2HDM Series User Manual

LG F12U2HDM Series
72 pages
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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS
CORRECTLY BEFORE OFFERING SERVICE.
BEFORE SERVICING THE WASHING MACHINE, UNPLUG THE POWER
CORD TO AVOID THE RISK OF AN ELECTRIC SHOCK.
WHEN SERVICING INTERNAL PARTS, USE ONLY SERVICE PARTS
SUPPLIED FROM LG.
AFTER SERVICING THE ELECTRIC WIRE, INSURE THAT INSULATION
TAPE IS APPLIED TO PREVENT AN ELECTRICAL SHORT.
MODEL : F12U2HDM(P)(0~9)N
website :
http://biz.lgservice.com
e-mail : http://LGEservice.com/techsup.html
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LG F12U2HDM Series Specifications

General IconGeneral
BrandLG
ModelF12U2HDM Series
CategoryWasher
LanguageEnglish

Summary

Specifications and Technical Data

Product Specifications Table

Detailed technical specifications including power, dimensions, and operational parameters.

Key Product Features Overview

Overview of the washing machine's advanced features and technologies.

Water Level and Door Operation Details

Explanation of water level control and door lock mechanisms.

NFC Tag On Functionality Guide

Details on using the NFC Tag On function with a smartphone.

Parts Identification and Accessories

Washing Machine External Components

Identification of major external parts of the washing machine.

Included Installation Accessories

List and illustration of accessories provided with the washing machine.

Installation and Setup Procedures

Installation Area and Condition Checks

Guidelines for selecting and preparing the installation location for the appliance.

Unpacking and Initial Appliance Verification

Steps for unpacking the appliance and verifying its condition.

Transit Bolt Removal and Hose Connections

Procedure for removing transit bolts and connecting water hoses.

Leveling and Securing the Appliance

Detailed steps on how to check and adjust the appliance's horizontality.

Appliance Operation and Usage

Control Panel and Interface Functions

Explanation of the control panel layout, buttons, and LED display functions.

Wash Cycle Options Overview

Details on selecting various wash options like Pre Wash and Crease Care.

Advanced Operation Features (Child Lock, Beep)

Guide to activating child lock and managing beep sound notifications.

Drying Functionality and Modes

Explanation of automatic drying guides and operational procedures.

Wiring Diagrams and PCB Layouts

Main Wiring Diagram Schematics

Schematic representation of the appliance's electrical connections and components.

Main PCB Component Identification

Identification and location of components on the main printed circuit board.

Troubleshooting Common Issues

Pre-Service Checks and Diagnostic Modes

Essential checks before service and how to use the Load Test Mode for diagnostics.

Water Level and Error Code Diagnostics

Procedures for checking water level frequency and understanding error display codes.

Water Inlet Error (IE) Troubleshooting

Steps to diagnose and fix water inlet issues indicated by the IE error code.

Unbalanced Load Error (UE) Solutions

Guidance for resolving the UE error related to unbalanced loads during spin.

Water Outlet Error (OE) Troubleshooting

Steps to diagnose and fix issues related to water outlet errors (OE).

Overflow Error (FE) Troubleshooting

Procedure to address the FE error, indicating water overflow.

Pressure Sensor Error (PE) Troubleshooting

Troubleshooting steps for errors related to the pressure sensor switch (PE).

Door Open/Switch Error (dE) Troubleshooting

Diagnostic procedures for door open and door switch errors (dE1/dE2).

Thermistor Heating Error (tE) Troubleshooting

Steps to resolve issues indicated by the thermistor heating error (tE).

Motor Locked Error (LE) Troubleshooting

Troubleshooting guide for the motor locked error (LE), including sensor checks.

Dry Heater Error (dHE) Troubleshooting

Procedures for diagnosing and fixing dry heater (dHE) and fan motor issues.

Troubleshooting Without Error Codes

Power Failure and No Power Diagnosis

Steps to identify and resolve issues causing power failure or no power.

Vibration and Noise During Spin Troubleshooting

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

Detergent and Softener Dispensing Issues

Steps to fix problems where detergent or softener does not dispense correctly.

Water Leak Identification and Repair

Comprehensive guide to diagnosing and fixing various types of water leaks.

Smart Functionality and Connectivity

NFC Tag On Function Setup and Usage

Guide to enabling NFC and pairing the smartphone with the appliance for Tag On.

Tag On Positioning and Communication

Instructions on positioning the smartphone for optimal Tag On communication.

Component Inspection and Testing

Line Filter Assembly Resistance Test

Procedure for testing the resistance of the line filter assembly.

Door Lock Switch Assembly Testing

Testing the resistance and voltage of the door lock switch assembly.

Stator Assembly Resistance Measurement

Measuring resistance across stator winding terminals for inspection.

Pump Motor Assembly Resistance Test

Procedure for checking the resistance of the pump motor assembly.

Inlet Valve Assembly Resistance Check

How to test the resistance of the inlet valve solenoids.

Disassembly and Reassembly Procedures

Control Panel Assembly Disassembly Steps

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

Main PWB and Dispenser Assembly Removal

Instructions for removing the main PCB assembly and the dispenser assembly.

Inlet Valve and Door Removal Procedures

Procedures for removing the inlet valve and the appliance door.

Cabinet Cover Removal

Steps for disassembling the outer cabinet cover of the washing machine.

Pump and Heater Component Removal

Instructions for removing the pump and heating elements.

Exploded Views and Part Lists

Cabinet Assembly Parts Breakdown

Exploded view and part list for the main cabinet assembly.

Control Panel & Dispenser Exploded View

Exploded diagram showing components of the control panel and dispenser.

Drum & Tub Assembly Exploded View

Exploded diagram illustrating the drum and tub assembly parts.

Dryer Component Exploded View

Exploded diagram of the dryer components, if applicable.

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