LG Washer main PCB assembly 6871ER1003M

LG washer main printed-circuit-board assembly, also listed as the main power board or PWB/PCB assembly, main.

Is This the Right Part?

Common Symptoms

• Washer will not complete its cycle
• Washer will not operate or respond normally to controls
• Washer may fail to agitate or spin when the main control system is faulty

Check Before Replacing

• Verify that the washer has incoming electrical power and that external power protection has not tripped before condemning the board.
• Check the washer's model-specific wiring, connectors, and related components before replacing the main PCB.
• Compare the installed board's printed part number with 6871ER1003M before ordering.

Pro Tip

Part Details

Key Features

• LG part number 6871ER1003M
• Main PCB/PWB assembly
• Listed in the cabinet and control-panel diagram at schematic location A450 for documented models
• Documented as no longer manufactured or unavailable from the manufacturer by multiple parts sources

Installation Notes

• Disconnect electrical power before servicing the washer.
• Confirm the exact washer model and board part number before installation.
• Transfer or reconnect wiring only according to the model-specific service documentation; do not assume connectors are interchangeable.

Verified Compatible Models

WM2677HBM, WM2677HSM, WM2677HWM

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.