Lg EBR78402301 Main Control Board (Power Pcb Assembly) OEM Part

Product Details

Genuine Lg part.

Cross Reference Information

Part Number EBR78402301 replaces AP5977729.

Description

This is the main control board (power PCB assembly) that manages power distribution and control functions for the appliance, restoring proper electronic control when the original board has failed or lost functionality. What it does:

• Controls power to major components and coordinates electronic functions on the appliance
• Can cause symptoms such as no display, unresponsive controls, intermittent power, or components (compressor, fans, valves) not running
• Replaces a damaged or burnt PCB that shows visible damage or fails diagnostic checks
• Works as the central interface to sensors and switches to maintain normal operation

What's included: One main control board (power PCB) assembly. Install notes:

• Disconnect power to the appliance before servicing to avoid shock or damage
• Handle the board by its edges and avoid touching components; use anti-static precautions
• Verify the part number on the replacement board matches the original before installing