Reconditioned EBR77893101 Main PCB Control Board

Part Overview

• Part Number: EBR77893101

• Manufacturer: LG Electronics

• Component Name: Main PCB Assembly (Control Board)

• Reconditioned for like-new performance at a more affordable cost

This is a main control board used in various LG refrigerators. It acts as the brain of the appliance, controlling critical functions such as cooling cycles, defrosting, compressor operation, fan speeds, and communication between sensors and subsystems.

⚙ Functions

• Compressor Control: Manages when the compressor turns on/off and at what speed (especially in inverter models).

• Defrost Cycle Management: Controls automatic defrosting to prevent ice buildup.

• Sensor Communication: Interfaces with temperature sensors, door sensors, and user interface boards.

• Error Detection: Monitors system health and triggers error codes when faults are detected.

🔧 Common Symptoms Needing Replacement

You might need to replace the EBR77893101 board if you experience:

• Refrigerator not cooling or freezing properly

• Fans or compressor not running despite power supply

• Unresponsive control panel or display

• Error codes pointing to main PCB failure

• Frequent tripping of circuit breakers (sometimes caused by board shorts)