LG WM3670H A Series - User Manual

MODELS : WM3670H*A
WASHING MACHINE
SERVICE MANUAL
READ TH I S M A N U A L CA REFUL LY TO D I A GN O SE
PROBLEMS CORRECTLY BEFORE
SE RV I CI N G THE U N I T.
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LG WM3670H A Series Specifications

General

Brand	LG
Model	WM3670H A Series
Category	Washer
Language	English

Summary

1. SPECIFICATIONS

2. FEATURES & TECHNICAL EXPLANATION

2-1. FEATURES

Describes key features such as Ultra Capacity, Direct Drive System, Tilted Drum, and Child Lock.

5. OPERATION

5-1. CONTROL PANEL FEATURES

Explains the various buttons and display elements on the control panel.

5-2. Cycle Guide

Provides a guide to recommended fabric types and options for each wash cycle.

5-3. SPECIAL FUNCTIONS

Details special functions like Child Lock and Fresh Care.

5-4. Explanation of each process

Explains the sequence and function of each washing process.

6. TEST MODE

6-1. SAFETY CAUTION

Provides critical safety warnings for working with test modes.

6-2. LOAD TEST MODE

Details the procedure and checks for the Load Test Mode.

6-3. HOW TO CHECK THE WATER LEVEL FFREQUENCY

Explains how to check water level frequency using button combinations.

7. TROUBLESHOOTING

7-1. SAFETY CAUTION

Safety warnings specific to troubleshooting procedures.

7-2. ERROR MODE SUMMARY

Lists error codes, symptoms, and their common causes.

7-3. TROUBLESHOOTING WITH ERROR

INLET VALVE ERROR

Provides a flowchart for diagnosing and resolving Inlet Valve errors.

DRAIN ERROR

Provides a flowchart for diagnosing and resolving Drain errors.

LOCKED MOTOR ERROR

Details troubleshooting steps for Locked Motor Errors.

DOOR OPEN ERROR

Outlines the diagnostic process for Door Open Errors.

UNBALANCE ERROR

Provides troubleshooting steps for Unbalance Errors.

OVER FLOW ERROR

Details troubleshooting steps for Overflow Errors.

PRESSURE SENSOR ERROR

Offers troubleshooting steps for Pressure Sensor Errors.

8-5. TROUBLESHOOTING ELSE

NO POWER

Troubleshooting guide for when the appliance has no power.

BUTTON DOESNT WORK

Troubleshooting steps for when buttons on the control panel do not work.

VIBRATION & NOISE IN SPIN

DETERGENT DOES NOT FLOW IN

LIQUID DETERGENT;SOFTENER; BLEACH DOES NOT FLOW IN

ABNORMAL SOUND

7-5. Before using the Tag On function

The Tag On guide

Provides a guide on using the Tag On function with a smartphone.

8. COMPONENT TESTING INFORMATION

8-1. FILTER ASSEMBLY (LINE FILTER)

Details the wiring diagram, test points, and results for the filter assembly.

8-2. DOOR LOCK SWITCH ASSEMBLY

Describes the function and wiring of the door lock switch assembly.

8-3. STATOR ASSEMBLY

Explains the stator assembly, its function, and test points for windings.

8-4. PUMP MOTOR ASSEMBLY

Details the pump motor assembly, its function, and test points.

8-5. INLET VALVE ASSEMBLY

Describes the inlet valve assembly, its function, and test points.

8-6. THERMISTOR ASSEMBLY

Explains the thermistor assembly, its function, and test points/results.

9. DISASSEMBLY INSTRUCTIONS

CONTROL PANEL

Instructions for disassembling the control panel.

DRAWER

Instructions for removing the drawer.

DISPLAY PWB ASSEMBLY

Instructions for disassembling the display PWB assembly.

MAIN PWB ASSEMBLY

Instructions for disassembling the main PWB assembly.

DISPENSER ASSEMBLY

Instructions for disassembling the dispenser assembly.

NOISE FILTER

Instructions for disassembling the noise filter.

CABINET COVER

Instructions for disassembling the cabinet cover.

DOOR

Instructions for disassembling the door.

DOOR LOCK SWITCH ASSEMBLY

Instructions for disassembling the door lock switch assembly.

PUMP

Instructions for disassembling the pump assembly.

WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB

Steps to remove foreign objects stuck between the drum and tub.

LAMP ASSEMBLY

Instructions for disassembling the lamp assembly.

MOTOR;DAMPER

Instructions for disassembling the motor and damper.

10. EXPLODED VIEW

10-1. CABINET & CONTROLPANEL ASSEMBLY

Exploded view of the cabinet and control panel assembly with part numbers.

10-2. DRUM & TUB ASSEMBLY

Exploded view of the drum and tub assembly with part numbers.

10-3. DISPENSER ASSEMBLY

Exploded view of the dispenser assembly with part numbers.

11. Wiring Diagram