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LG WD-12331(6)RD - User Manual

LG WD-12331(6)RD
41 pages
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WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-14331(6)AD
WD-12331(6)AD
WD-14331(6)RD
WD-12331(6)RD
WD-14335AD
CAUTION

Questions and Answers

  • E
    eric38Aug 3, 2025
    What to do if my LG WD-12331(6)RD Washer shows a DOOR OPEN ERROR?
    • M
      mturnerAug 4, 2025
      If you are operating the reservation function or another function with the door open, close the door to resolve the error. This error can also appear if the door switch is out of order.
  • M
    Mr. James Garcia DVMAug 8, 2025
    What does a DRAIN ERROR mean on my LG WD-12331(6)RD?
    • C
      chloeriveraAug 8, 2025
      A DRAIN ERROR indicates that the washer has not fully drained within 5 minutes.
  • D
    Dylan HaasAug 12, 2025
    What causes an IMBALANCE ERROR on my LG Washer?
    • E
      Erica MaloneAug 12, 2025
      An IMBALANCE ERROR can be caused by the appliance being tilted or laundry gathered to one side.
  • D
    Donna DouglasAug 16, 2025
    What does WATER INLET ERROR mean on my LG WD-12331(6)RD Washer?
    • C
      Christy CookAug 16, 2025
      A WATER INLET ERROR means that the water level has not reached level 2 within 4 minutes after water is supplied, or it has not reached the preset water level within 25 minutes.
  • E
    Erika HermanAug 21, 2025
    Why does my LG WD-12331(6)RD show an OVERFLOW ERROR?
    • S
      Stacey SmithAug 21, 2025
      If the Washer displays an OVERFLOW ERROR, it means the water is overflowing (over level 8). The drain pump will automatically operate to drain the water.
  • K
    Kimberly TrevinoAug 26, 2025
    What causes a MOTOR ERROR on an LG WD-12331(6)RD?
    • W
      wbennettAug 26, 2025
      A MOTOR ERROR can occur if the connector in the LEAD WIRE ASSEMBLY is not connected to the connector of the STATOR ASSEMBLY; reconnect or repair the connector. It can also mean that the hall sensor is out of order or defective, in which case you should replace the STATOR ASSEMBLY.
  • S
    Sarah RangelAug 29, 2025
    How to fix a DRY HEATOR ERROR on my LG WD-12331(6)RD Washer?
    • C
      cparkerAug 29, 2025
      A DRY HEATOR ERROR can occur if the Dry Heater is out of order (replace the Dry Heater), the connector of the Dry Heater is not properly connected to the connector in the Main PWB ASSEMBLY (reconnect or repair the connector), or the Dry fan motor is out of order (replace the fan Motor).

Summary

1. SPECIFICATION

2. FEATURES & TECHNICAL EXPLANATION

2-1.FEATURES

Details about automatic washing, intelligent wash system, direct drive, child lock, and low noise.

2-2.DETERMINE WASHING TIME BY FUZZY LOGIC

How fuzzy logic determines washing time based on sensors.

2-3.WATER LEVEL CONTROL

Explanation of the water level control system using a pressure sensor.

2-4.THE DOOR CAN NOT BE OPENED

Conditions under which the washing machine door cannot be opened.

3. PARTS IDENTIFICATION

4. INSTALLATION

STANDARD INSTALLATION

Guidelines for standard installation, including removing transit bolts and leveling.

7. TEST OPERATION

5. OPERATION

6. WIRING DIAGRAM; PROGRAM CHART

7. TROUBLE SHOOTING

7-1.BEFORE PERFORMING SERVICE

Safety precautions and general checks before troubleshooting.

7-2.QC TEST MODE

Steps to enter and use the Quality Control (QC) test mode for diagnostics.

7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY

Method to check water level frequency using the Rinse Hold button.

7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION

Procedure to check thermistor temperature in tub or dry duct.

7-5.ERROR DISPLAY.

List of error codes, symptoms, and their causes for the washing machine.

8. ERROR DIAGNOSIS AND CHECK LIST

8-1.DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION

Troubleshooting guide for common symptoms like no power or water inlet issues.

8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING

Detailed fault diagnosis flowcharts for various operational problems.

9. DISASSEMBLY INSTRUCTIONS

CONTROL PANEL

Step-by-step instructions for disassembling the control panel assembly.

DISPENSER ASSEMBLY

Procedure for disassembling the detergent dispenser assembly.

INLET VALVE

Instructions for disconnecting and removing the water inlet valve.

COVER LOWER

Steps to remove the lower cover and drain remaining water.

DOOR

Procedure for removing the washing machine door assembly.

GASKET

Instructions for disassembling and reassembling the door gasket.

ROTOR ASSEMBLY, STATOR ASSEMBLY, FRICTION DAMPER

Disassembly steps for motor components like rotor, stator, and damper.

PUMP

Steps to remove the water pump and its related parts.

HEATER

Instructions for removing the washing machine heater element.

THERMISTOR

Procedure for removing the thermistor from the washing machine.

SWITCH ASSY, DOOR LOCK

Disassembly of the door lock switch assembly.

WHEN FOREIGN OBJECT STUCK BETWEEN DRUM AND TUB

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

DRY DUCT

Instructions for removing the dry duct and fan assembly.

CONDENSING DUCT

Steps for disassembling the condensing duct.

10. EXPLODED VIEW AND PART LIST

10-1.THE PART LIST OF CABINET ASSEMBLY

Exploded view and part list for the cabinet assembly.

10-2 THE EXPLODED VIEW OF CONTROL PANEL & DISPENSER ASSEMBLY

Exploded view and part list for control panel and dispenser.

10-3 THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY

Exploded view and part list for the drum and tub assembly.

10-4 THE EXPLODED VIEW OF DRYER

Exploded view and part list for the dryer components.

LG WD-12331(6)RD Specifications

General IconGeneral
Loading typeFront Loading
Maximum spin speed1200 RPM
Washing capacity6 kg
Capacity6 kg
Spin Speed1200 RPM
Child LockYes
Delay StartYes
Quick WashYes
Dimensions (HxWxD)850 x 600 x 550 mm

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