LG Refrigerator Main PCB Assembly / Power Control Board EBR78940612, Replaces EBR78940609, EBR78940613 – Superseded by CSP30020903

LG refrigerator main power/control board. It activates refrigerator components including the compressor and fans to maintain cooling.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Refrigerator not cooling or cooling intermittently
• Compressor or fans do not start when cooling is required
• Refrigerator display or controls are unresponsive
• Erratic refrigerator operation or control-panel issues

Check Before Replacing

• Confirm the refrigerator has power by checking the outlet, power cord, circuit breaker, and whether another device operates from the outlet.
• After keeping hands dry, unplug the refrigerator for approximately five minutes and reconnect it to clear a possible temporary control-system fault.
• Check the refrigerator display for an error code and consult the model-specific LG error-code guidance; a control-board-related communication or compressor-relay code requires service evaluation.
• Observe whether the compressor and fans operate during a normal cooling cycle; do not conclude that the PCB is defective without ruling out power, wiring, compressor, fan, sensor, and other system faults.

Pro Tip

Part Details

Key Features

• Genuine LG refrigerator main PCB/power control board
• Activates and coordinates the compressor and refrigerator fans
• Designed for select LG refrigerator models
• Factory-specification replacement component

Installation Notes

• Safely store food that could deteriorate while the refrigerator is powered off.
• Unplug the refrigerator before installing or handling the PCB.
• Wear work gloves when handling the part.
• Verify the exact refrigerator model and replacement part before installation because visually similar boards may differ in fit or configuration.

Verified Compatible Models

795.74032411, 795.74033411, 795.74039411, 795.74042412, 74022, 74024, 74025, 74029, 74032, 74033, 74039, 74042, 74043, 74049, 79983, 79993, 79574022411, 79574023411, 79574024411, 79574025411, 79574025412, 79574042411, 79574043411, 79574049411, 79579993510, 79579993511, LFXC24726D, LFXC24726D/00, LFXC24726S, LFXS25973D/00, LFXS30726B, LFXS30726S, LFXS30726S/01, LFXS30726W, LFXS30766D, LFXS30766D-ASBCNA0, LFXS30766D/00, LFXS30766S, LFXS30786S

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