Lg EBR78534504 Main Pcb Power Control Board Assembly (Control Board) OEM Part

Product Details

Genuine Lg part.

Cross Reference Information

Part Number EBR78534504 replaces AP5977746, 3381774, PS11710884.

Description

This main PCB power control board assembly manages power and core control functions for the appliance, restoring electronic control of cycles, user interface, and timed operations when the original board has failed. What it does

• Regulates and distributes power to the appliance's control systems and sensors.
• Interprets user inputs and runs programmed cycles and timing functions.
• Helps control display and indicator behavior tied to electronic faults.
• Common symptom: appliance won't power on, shows a blank or unresponsive display.
• Common symptom: erratic cycles, unexpected stops, or electronic error codes.

What's included

• One main PCB power control board assembly as shown.

Install notes

• Disconnect all power before starting—this is an electrical component.
• Handle the board carefully and avoid touching contacts; ESD-safe handling recommended.
• Basic panel removal and connector access are typically required; retain screws and fasteners for reassembly.
• If symptoms persist after replacement, verify wiring harnesses, door/lid switches, and sensors before reordering.