LG Refrigerator Control Board EBR64173902 – No Longer Available (NLA)

The electronic control center that manages power distribution, temperature regulation, and all system operations — the primary cause of a refrigerator that won’t power on or loses temperature control when failed.

Is This the Right Part?

Common Symptoms

• Refrigerator will not power on or start
• Control panel unresponsive or displaying error codes
• Temperature not maintaining properly — fridge or freezer section too warm
• Compressor or fans not cycling correctly despite power being present

Check Before Replacing

• Verify the power outlet and circuit breaker are functioning — rule out a supply issue before replacing the board
• Check the door switches and thermistors for faults — a failed sensor can trigger board-level error codes
• Inspect the wiring harness connectors on the board for corrosion, burn marks, or loose pins
• Confirm the compressor start relay is not the failed component — a bad relay mimics board failure

Part Details

Verified Compatible Models

LFX25974ST, LFX25974SB, LFX25974SW, LFX28978ST, LFX28978SB, LFX28978SW, LFX31925ST, LFX31925SB, LFX31925SW, LFX31945ST, LFX31945SB, LFX31945SW, LFX33975ST, LFX33975SB, LFX33975SW

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