LG Refrigerator Power Control Board EBR64173902
LG Refrigerator Power Control Board EBR64173902

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

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⚠️ This part has been discontinued by the manufacturer and is no longer available (NLA)

LG Refrigerator Control Board EBR64173902, Fixes Refrigerator Not Powering On

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.

Part EBR64173902 NLA – Limited Stock OEM Replacement

🇺🇸 Matching U.S. Part Number: EBR64173902

The LG EBR64173902 Refrigerator Control Board is designed to manage all electrical functions of the refrigerator, including power distribution, temperature control, compressor operation, and display communication. There are no known superseded part numbers — EBR64173902 is the direct OEM reference. This part has been discontinued by the manufacturer. No backorders accepted.

Is This the Right Part?

Part NumberEBR64173902
ReplacesEBR64173902 (no superseded numbers)
ManufacturerLG
Appliance TypeRefrigerator

Confirm the complete model number before ordering. Similar control boards may use different connector layouts, firmware versions, or mounting configurations that prevent direct substitution.

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
Pro Tip: Before condemning the control board, check the compressor start relay — it’s a $15–25 part that causes identical symptoms and is far more commonly the root cause. Replacing the relay first can save a costly board replacement on a unit that’s already NLA.

Part Details

Part TypeRefrigerator Control Board (PCB Assembly)
Primary FunctionManages power distribution, temperature, and system operations
Key FeatureOEM direct replacement, exact fit
ConditionOEM – No Longer Available (NLA)

Installation Notes

  1. Disconnect power before servicing — control boards carry live voltage.
  2. Photograph all wiring harness connections and connector positions before removal.
  3. Compare the new board with the original before installation — verify connector count and layout.
  4. Inspect all harness connectors for corrosion or damage before reconnecting.
  5. Restore power and verify all functions — check for error codes and confirm temperature recovery.

Use a qualified technician when diagnosis or installation is outside your experience.

Verified Compatible Models

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

Fitment reminder: Match the complete model number, including suffixes and revision digits, before ordering.

✅Compatibility & Cross Reference

EBR64173902

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

Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.

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