Table of Contents
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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL : GCWM1069CS7
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless
you have obtained the prior written consent of the LG Electronics entity from which you received this Service
Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this
Service Manual.
Copyright © 2020 LG Electronics Inc. All rights reserved. Only training and service purposes.
GCWM1069CD7
GCWM1069QS7
GCWM1069QD7
CONFIDENTIAL
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Table of Contents
Troubleshooting
Related Manuals for LG GCWM1069CD7
Summarization of Contents
Important Safety Instructions
General Safety Precautions
Basic precautions to minimize risks of fire, electric shock, or injury when using the washer.
Grounding Instructions
Proper grounding procedures for personal safety and to reduce the risk of electric shock.
Features and Technical Explanation
Direct Drive System
Advanced Brushless DC motor directly drives the drum without belt and pulley.
Tilted Drum and Extra Large Door Opening
Tilted drum and extra large door opening for easy loading and unloading.
Ultra Capacity
Larger drum enables higher head drop, stronger centrifugal force, less tangling and wrinkling.
See-Through Door and Big Door
Allows viewing of laundry throughout the wash cycle.
Magnetic Door Plunger
Secures the door slightly ajar for air circulation and interior drying.
Stainless Steel Drum
Offers extreme durability for the washing machine drum.
Tub Clean Function
Regular cleaning of the tub to keep it clean and fresh.
LG Laundry Lounge Apps
Apps for installers and end-users to manage and monitor products.
Water Level Control
Utilizes a pressure sensor to monitor and control water levels during cycles.
Door Control
Explains how to open the door and the door lock mechanism.
Door Cannot Be Opened
Conditions under which the door cannot be opened during operation.
Door Locked Lamp Lights
Conditions that trigger or cancel the door lock lamp status.
Installation Instructions
Shipping Bolts and Removal
Instructions for removing shipping bolts to prevent internal damage during transportation.
Installation Clearances and Dimensions
Details required clearances for installation and washer dimensions.
Minimum Spacing for Recessed Installation
Provides specific spacing requirements for recessed area installations.
Auto Dosing System Installation
Instructions for installing the auto dosing system and its interface.
Appliance Placement and Power Connection
Ensures proper installation on a flat, firm, level floor and safe power plug connection.
Level Adjustment Procedure
Step-by-step guide to adjust feet for proper leveling and reduce vibration.
Electrical and Water Supply Connections
Guidelines for safe electrical connection and proper water supply hose connection.
Drain Hose Installation
Instructions for correctly installing the drain hose to prevent flooding and damage.
Operation
Control Panel Features Overview
Overview of control panel buttons, displays, and indicators for different models.
Display, Cycle Buttons, and Status LEDs
Explanation of display LED, cycle selection buttons, and status indicators.
Start/Pause and Optional Functions
Details on using the Start/Pause button and optional functions like Add Super Wash.
Cycle Selection and Options
Guide to selecting cycles based on fabric type, soil level, and wash/rinse temperature.
Wiring, Program Chart, and PCB Layout
Wiring Diagram
Detailed wiring diagrams for single and stack type washing machines.
Program Chart Details
Table detailing cycle courses, fabric types, water supply, wash, rinse, and spin parameters.
Main PCB Layout
Diagram showing the main PCB layout with component and connector identification.
Troubleshooting
Before Performing Service
Important safety precautions and voltage information before troubleshooting.
QC Test Mode Operation
Procedure for entering and operating the Quality Control test mode.
Checking Water Level and RPM
Methods to check water level frequency and rotational speed (RPM) using button combinations.
Error Display Codes (1)
Lists common error codes, their symptoms, and potential causes.
Error Display Codes (2)
Lists further error codes, their symptoms, and potential causes.
Dispenser Operation and Usage
Details on using the dispenser for single and stack models, including detergent types.
Diagnosis and Troubleshooting
No Power Diagnosis Flowchart
Flowchart for diagnosing and resolving 'No Power' issues.
No Power Troubleshooting Steps
Detailed steps for diagnosing and resolving 'No Power' issues, including circuit checks.
IE Error (No Water Supply) Troubleshooting
Troubleshooting guide for 'IE Error' related to water supply issues.
Inlet Valve Error Diagnosis
Diagnosing 'Inlet Valve Error' by checking wiring, resistance, and voltage.
OE Error (Drain Trouble) Troubleshooting
Troubleshooting guide for 'OE Error' related to drain issues.
Drain Error Diagnosis Steps
Diagnosing 'Drain Error' by checking wiring, resistance, and drain line.
FE Error and PE Error Troubleshooting
Troubleshooting steps for 'FE Error' (water supply/pressure) and 'PE Error' (pressure switch).
Pressure Sensor Error Diagnosis
Diagnosing 'Pressure Sensor Error' by checking wiring, resistance, and air chamber.
Door Error Diagnosis (dE1/dE2)
Troubleshooting guide for 'Door Error' related to door opening and lock mechanisms.
Door Open Error Diagnosis (dE)
Diagnosing 'Door Open Error' by checking wiring, latch, and door switch.
Vibration and Noise in Spin
Detergent/Softener/Bleach Flow Issues
Troubleshooting steps when detergent, softener, or bleach does not flow into the dispenser.
Abnormal Sound Troubleshooting
Diagnosing and resolving abnormal sounds during operation.
Suds Overflow Issues
Troubleshooting steps for suds overflow, including detergent usage.
Water Overflow from Drawer/Dispenser
Troubleshooting steps for water overflow from the drawer or dispenser.
Leveling the Unit
Adjusting Legs for Leveling
Detailed steps for adjusting the leveling legs to ensure stability and minimize vibration.
Uneven Floor Considerations
Guidance on how uneven floors affect operation and vibration, and how to address it.
Leveling Legs and Floor Conditions
Tips for adjusting legs, using rubber cups, and ensuring a clean, non-slippery floor.
Smart Functions
LG Laundry Lounge System Overview
Introduction to the remote monitoring and control system with its components.
Product Registration and Setup
Step-by-step guide on how to register the product and set up the smart functions.
Wireless LAN Module Specifications
Technical specifications for the wireless LAN module, including FCC and IC compliance.
Disassembly Instructions
Control Panel Assembly Disassembly
Steps to disassemble the control panel assembly.
Display PWB Assembly Disassembly
Steps to disassemble the display PWB assembly.
Top Plate Assembly Disassembly
Instructions for disassembling the top plate assembly for both stack and single models.
Main PWB Assembly Disassembly
Steps to disassemble and replace the main PWB assembly.
Dispenser Assembly Disassembly
Steps to disassemble the dispenser assembly for single and stack models.
Inlet Valve Assembly Disassembly
Steps to disassemble the inlet valve assembly, including connector identification.
Cabinet Cover Disassembly
Steps to disassemble the cabinet cover, including accessing the cap cover.
Gasket Disassembly
Steps to disassemble the tub gasket after removing the cabinet cover.
Door Assembly Disassembly
Steps to disassemble the door and its components, including the hinge cover.
Door Lock Switch Assembly Disassembly
Steps to disassemble the door lock switch assembly.
Pump Assembly Disassembly
Steps to disassemble the pump assembly, including hoses and bolts.
Heater and Noise Filter Disassembly
Steps to disassemble the heater and noise filter, including connectors.
Motor Assembly Disassembly
Steps to disassemble the motor assembly, including rotor, stator, and bracket.
Damper Disassembly
Steps to disassemble the damper hinges from the tub and base.
Exploded View Diagrams
Cabinet and Control Panel Assembly Exploded View
Exploded view diagram of the cabinet and control panel assembly.
Cabinet and Control Panel Assembly Details
Detailed exploded view of the cabinet and control panel assembly.
Drum and Tub Assembly Exploded View
Exploded view diagram of the drum and tub assembly.
Dispenser Assembly Exploded View (Single Model)
Exploded view diagram of the dispenser assembly for single model units.
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