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LG WD-14120FD - User Manual

LG WD-14120FD
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100
WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-10120(5)FD
WD-10121(6)FD
WD-12120(5)FD
WD-12121(6)FD
WD-14120(5)FD
WD-14121(6)FD
WD-16120(5)FD
WD-16121(6)FD
FWD-12120(5)FD
FWD-14120(5)FD
FWD-16120(5)FD
DWD-12120(5)FD
DWD-14120(5)FD
DWD-16120(5)FD
CAUTION
website : http://www.LGEservice.com
e-mail : http://LGEservice.com/techsup.html

Questions and Answers

  • R
    Rebekah HoltAug 13, 2025
    Why does my LG Washer show an imbalance error?
    • S
      Susan AndersonAug 13, 2025
      An imbalance error on your LG Washer can occur for several reasons: the load is too small, the appliance isn't level, laundry is bunched to one side, or non-distributable items are in the drum. Check these potential causes to resolve the issue.
  • D
    Donald QuinnAug 17, 2025
    What causes a drain error on an LG WD-14120FD Washer?
    • N
      Nicholas EvansAug 17, 2025
      A drain error on your LG washer means that water hasn't drained sufficiently within 10 minutes. Check the drain hose for any clogs or kinks that may be preventing proper drainage.
  • P
    Paul PaulAug 21, 2025
    What causes a lock error on my LG WD-14120FD Washer?
    • S
      susan00Aug 21, 2025
      A lock error on your LG Washer can stem from several connection issues or a defective hall sensor. Here are potential causes and solutions: 1. The LEAD WIRE ASSEMBLY connector isn't connected to the STATOR ASSEMBLY connector: Reconnect or repair the connector. 2. Poor electrical contact between connectors in the LEAD WIRE ASSEMBLY and MAIN PWB ASSEMBLY: Reconnect or repair the contact in the connector. 3. The LEAD WIRE ASSEMBLY is cut: Repair the damaged LEAD WIRE ASSEMBLY. 4. The hall sensor is defective: Replace the STATOR ASSEMBLY.
  • J
    Joshua IngramAug 25, 2025
    What to do if my LG WD-14120FD shows a door open error?
    • C
      Christina HughesAug 26, 2025
      A 'door open error' on your LG washer indicates that the Start/Pause button was pressed while the door was open or that the door switch is malfunctioning. Ensure the door is properly closed before starting the cycle. If the issue persists, the door switch may be faulty.
  • B
    bobby26Aug 28, 2025
    Why is my LG WD-14120FD Washer showing an overflow error?
    • B
      Brandy FletcherAug 28, 2025
      An overflow error on your LG washer occurs when too much water enters the tub, triggering an automatic pump-out. This indicates an issue with the water level control.
  • S
    Susan SmithSep 1, 2025
    What does a current error mean on my LG WD-14120FD?
    • A
      Alyssa VasquezSep 1, 2025
      A current error on your LG Washer can be due to two reasons. It could be a faulty MAIN PWB ASSEMBLY, in which case you should replace it. Alternatively, the winding in the STATOR ASSEMBLY might be short-circuited, requiring replacement of the STATOR ASSEMBLY.
  • T
    Tyler BrockSep 5, 2025
    What does a heating error mean on my LG WD-14120FD?
    • L
      Lacey MillerSep 5, 2025
      A heating error on your LG washer indicates that the THERMISTOR is out of order. This component is responsible for monitoring and regulating the water temperature during the wash cycle.
  • T
    Timothy StephensSep 8, 2025
    What does sensor pressure S/W error mean on LG Washer?
    • J
      johnsonjonathonSep 8, 2025
      A 'sensor pressure S/W error' on your LG washer indicates that the sensor pressure switch is malfunctioning. This switch is responsible for monitoring the water pressure inside the washer.

Summary

Specification

Features and Technical Explanation

Key Features

Describes key features like jumbo drum, intelligent wash system, direct drive, child-lock, low noise, and auto restart.

Fuzzy Logic Washing Time Determination

Explains how fuzzy logic determines washing time based on sensor inputs.

Water Level Control

Details the water level control mechanism using a pressure sensor.

Door Cannot Be Opened During Operation

States that the door cannot be opened while the program is operating.

Parts Identification

Included Accessories

Lists and illustrates included accessories like inlet hose and wrench.

Installation Guide

Standard Installation Procedures

Outlines the standard installation steps including removing transit bolts and leveling.

Connecting the Inlet Hose

Instructions on connecting the water inlet hose properly to prevent leaks.

Connecting the Drain Hose

Guidelines for connecting the drain hose correctly, avoiding submersion and twists.

Connecting the Power Plug

Instructions for safely connecting the power plug, avoiding multi-device connections.

Operation

Child Lock Functionality

Explains how to set, cancel, and the functionality of the child lock feature.

Delay Finish Feature

Describes how to set a delay for the wash cycle, including maximum hours.

Start;Pause Button Usage

Details the function of the Start/Pause button for starting, pausing, and auto-power off.

Wash Program Selector Dial

Explains how to select wash programs using the dial.

Time Save Option

Describes the option to reduce wash program time, noting its unavailability with Quick 30.

LED Display Information

Explains what the LED display shows, including remaining time and error indications.

ON;OFF Button

Explains the function of the ON/OFF button to turn the appliance on and off.

Manual Wash, Rinse, and Spin

Guides on using buttons for manual wash, rinse, and spin selections.

Water Temperature Selection

Details how to select water temperature options for different programs.

Wiring Diagram and Program Chart

Troubleshooting

Before Performing Service

Safety precautions to take before starting troubleshooting procedures.

QC Test Mode Procedures

Instructions for entering and operating the QC test mode for diagnostics.

Checking Water Level Frequency

Method to check water level frequency by pressing specific buttons.

Error Display Codes

Lists and explains various error codes, their symptoms, and causes.

Error Diagnosis and Check List

Diagnosis for Abnormal Operation

Provides a flowchart for diagnosing and resolving abnormal operation symptoms.

Fault Diagnosis and Troubleshooting

Disassembly Instructions

Control Panel Assembly Removal

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

Dispenser Assembly Disassembly

Instructions for disassembling the detergent dispenser assembly.

Inlet Valve Assembly Removal

Details on disconnecting and removing the inlet valve assembly.

Main PWB Assembly Removal

Steps to remove the main printed circuit board (PWB) assembly.

Lower Cover Removal

Instructions for removing the lower cover of the appliance.

Door Assembly Removal

Procedure for removing the door assembly, including hinge screws.

Gasket Removal and Reassembly

Steps for removing and reassembling the door gasket and related clamps.

Rotor, Stator, and Friction Damper Assemblies

Instructions for disassembling rotor, stator, and friction damper assemblies.

Drain Pump Filter Cleaning

Guide on how to safely clean the drain pump filter.

Drain Pump Assembly Removal

Steps for removing the drain pump assembly, including hoses and wiring.

Heater Assembly Removal

Procedure for loosening and removing the heater assembly.

Thermistor Removal

Instructions for removing and remounting the thermistor.

Switch Assembly and Door Lock

Steps to disassemble the door lock switch assembly and disconnect wiring.

Foreign Material Removal (Drum;Tub)

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

Exploded View and Part List

Cabinet Assembly Part List

Exploded view and part list for the cabinet assembly.

Control Panel & Dispenser Assembly

Exploded view and part list for the control panel and dispenser assembly.

Drum & Tub Assembly

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

LG WD-14120FD Specifications

General IconGeneral
TypeFront Load
Capacity8 kg
Spin Speed1400 RPM
Energy RatingA+++
ColorWhite
Inverter MotorYes
Steam FunctionYes
Noise Level (Wash)54 dB
Noise Level (Spin)74 dB
Programs14
DisplayLED
Child LockYes
Delay StartYes

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