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LG WF-T851 User Manual

LG WF-T851
65 pages
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WASHING MACHINE
SERVICE MANUAL
MODEL : WF-T851 / T852 / T853 / T802 / T902
WF-T652(T652A) / T452(T452A) / 402
CAUTION
BEFORE OFFERING SERVICE, READ THIS MANUAL
CAREFULLY TO DIAGNOSE
TROUBLES CORRECTLY.
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LG WF-T851 Specifications

General IconGeneral
TypeTop Load Washer
Capacity8.5 kg
Spin Speed700 RPM
Inverter MotorNo
ColorWhite
Dimensions (HxWxD)54.0 x 54.0 cm

Summary

Specifications

Features and Technical Explanation

Fuzzy Control Diagram

Diagram illustrating the fuzzy logic control process for washing machines.

Comparison of Fuzzy and Conventional Washers

Compares the functionality of fuzzy logic washing machines against conventional ones.

Turbo Drum Wash Functional Principle

Explains the core functional principle behind the Turbo Drum Wash technology.

Working Principle by Process

Details the operational principles of the washing machine across different process stages.

Structure of the New Clutch

Illustrates the internal mechanical structure of the newly designed clutch.

Drain Motor and Circuit Diagram

Presents the drain motor component and its associated electrical circuit diagram.

Reed Switch for Appliance Safety

Explains the role and function of the reed switch for ensuring appliance safety.

Ball Pressure Sensor

Describes the ball pressure sensor used for detecting and managing laundry unbalance.

Triple Water Fall System

Details the triple water fall system designed to enhance washing and rinsing effects.

Automatic Correction for Unbalanced Laundry

Explains the mechanism for automatically correcting laundry unbalance during spinning.

Lid Switch for Appliance Safety

Describes the safety function of the lid switch in specific washing machine models.

New Unbalance Sensor (Optical Ball Sensor)

Explains the operation of the new optical ball sensor for detecting laundry unbalance.

Auto Power Off

Details the function that automatically cuts power after the wash program finishes.

Parts Identification

WF-T851, T902 Parts Identification

Identifies the various parts and accessories for WF-T851 and T902 models.

WF-T802, T852, T853, T652, T652A Parts Identification

Identifies parts and accessories for WF-T802, T852, T853, T652, T652A models.

WF-T452, T452A, 402 Parts Identification

Identifies parts and accessories for WF-T452, T452A, and 402 models.

Installation Instruction

How to Install the Washing Machine

Provides guidance on selecting the appropriate place and correctly installing the washing machine.

How to Level the Washing Machine

Instructions for leveling the washing machine to ensure stable operation and prevent vibration.

How to Install the Drain Hose

Detailed steps for correctly installing the washing machine's drain hose.

Flooding Drainage

Information regarding proper floor drainage to prevent water damage from leaks.

Connect Inlet Hose

Steps for properly connecting the water inlet hoses to the washing machine.

Schematic Diagram

WF-T851 Schematic Diagram

Electrical wiring diagram for the WF-T851 washing machine model.

WF-T853 Schematic Diagram

Electrical wiring diagram for the WF-T853 washing machine model.

WF-T802/T852 Schematic Diagram

Electrical wiring diagram for WF-T802 and T852 washing machine models.

WF-T452 Schematic Diagram

Electrical wiring diagram for the WF-T452 washing machine model.

WF-T652 Schematic Diagram

Electrical wiring diagram for the WF-T652 washing machine model.

WF-T902 Schematic Diagram

Electrical wiring diagram for the WF-T902 washing machine model.

WF-402 Schematic Diagram

Electrical wiring diagram for the WF-402 washing machine model.

Operating Instruction

WF-T851 Operating Instructions

Detailed operating instructions for the WF-T851 washing machine.

WF-T853 Operating Instructions

Detailed operating instructions for the WF-T853 washing machine.

WF-T802, T852 Operating Instructions

Detailed operating instructions for WF-T802 and T852 washing machines.

WF-T902 Operating Instructions

Detailed operating instructions for the WF-T902 washing machine.

WF-T652, WF-T652A Operating Instructions

Detailed operating instructions for WF-T652 and WF-T652A washing machines.

WF-T452, T452A Operating Instructions

Detailed operating instructions for WF-T452 and WF-T452A washing machines.

WF-402 Operating Instructions

Detailed operating instructions for the WF-402 washing machine.

Program Chart

WF-T902 Program Chart

Provides the program time chart for the WF-T902 washing machine.

WF-T851 Program Chart

Provides the program time chart for the WF-T851 washing machine.

WF-T802 Program Chart

Provides the program time chart for the WF-T802 washing machine.

WF-T853 Program Chart

Provides the program time chart for the WF-T853 washing machine.

WF-T652, T652A Program Chart

Provides program time charts for WF-T652 and WF-T652A washing machines.

WF-T452, T452A Program Chart

Provides program time charts for WF-T452 and WF-T452A washing machines.

WF-402 Program Chart

Provides the program time chart for the WF-402 washing machine.

Test Running Without Water

WF-T851, T902 Test Running

Procedures for test running WF-T851 and T902 models without water.

WF-T802, T852 Test Running

Procedures for test running WF-T802 and T852 models without water.

WF-T853, T652, T652A, T452, T452A Test Running

Procedures for test running WF-T853, T652, T652A, T452, T452A models without water.

WF-T402 Test Running

Procedures for test running the WF-T402 model without water.

Adjustment

Brake Lever Adjustment

Instructions for adjusting the brake lever to ensure proper function.

Keeping Clearance

Guidance on maintaining correct operational clearances between components.

V-Belt Adjustment

Steps for adjusting the V-belt tension and alignment for optimal performance.

Disassembly and Fuse Replacement

Replacement of Controller Part

Procedure for replacing the main controller unit in various washing machine models.

Disassembling of Top Cover

Steps required to safely disassemble the top cover of the washing machine.

Replacement of Tub Parts

Instructions for the removal and replacement of internal tub assembly components.

Replacement of Outcase and Suspension Assembly

Procedure for replacing the external casing and suspension components.

Disassembly of Inlet Valve Assembly and D.T Housing Assembly

Steps for disassembling the water inlet valve and D.T housing assemblies.

Fuse Replacement

Detailed instructions for safely replacing the fuse in the washing machine.

Replacement of Drain Pump

Instructions for removing and replacing the drain pump assembly.

Trouble Shooting Methods According to Displayed Error Mode

WF-T851, T852, T853, T802, T652, T652A, T452, T452A Error Modes

Troubleshooting steps for various error codes displayed on specific washing machine models.

WF-402 Error Modes

Troubleshooting steps for error codes displayed on the WF-402 washing machine model.

How to Diagnose and Repair by Symptom

Washer Not Energized Diagnosis

Diagnosing and repairing issues when the washing machine does not power on.

Defects on Displaying Function

Troubleshooting common defects related to the washing machine's display functionality.

Reset During Operation

Procedures for resetting the washing machine's operation during use.

Water Not Entering Wash Bowl

Diagnosing and resolving issues where water fails to enter the wash bowl.

Continuous or Intermittent Water Filling

Troubleshooting problems causing continuous or intermittent water filling in the wash bowl.

Pulsator Not Rotating Normally

Diagnosing and repairing issues when the pulsator fails to rotate correctly.

Water Not Draining

Troubleshooting problems preventing water from draining out of the washing machine.

Water Drains When Not Time To Drain

Diagnosing why water drains from the machine outside of the scheduled drain cycle.

Drain Error During Normal Draining

Troubleshooting drain errors that occur while the machine is performing a normal drain cycle.

Spin Extraction Not Proceeding

Diagnosing and resolving issues where spin extraction fails to initiate.

Spinning With Lid Open

Troubleshooting the condition where spinning continues even with the lid open.

Spin Basket Speed Issues

Troubleshooting why the spin basket fails to reach its normal operating speed.

Vibration, Noise, or Unbalance Error During Spin

Diagnosing and resolving vibration, noise, or unbalance errors occurring during the spin cycle.

Power Not Automatically Turned Off

Troubleshooting why the washing machine's power does not turn off automatically.

Automatic Power Off During Operation or Startup

Diagnosing sudden power offs during operation or immediately after startup.

Exploded View

Exploded View of Body-A (WF-T851)

Detailed exploded view of the Body-A assembly for the WF-T851 model.

Exploded View of Body-A (WF-T853, T802, T652, T452)

Detailed exploded view of the Body-A assembly for WF-T853, T802, T652, T452 models.

Exploded View of Body-B

Detailed exploded view of the Body-B assembly for the washing machine.

Exploded View of the Tub Assembly

Detailed exploded view of the washing machine's tub assembly and its components.

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