LG EBR88309704 Refrigerator Main Control Board — Fixes No Cooling / Compressor Not Running
If your LG refrigerator has stopped cooling, the compressor won't run, or the unit cycles erratically, the main control board is the most common cause. In most LG French door and bottom-freezer refrigerators, the main PCB assembly (EBR88309704) governs compressor start signals, fan motor control, defrost timing, and temperature regulation. When it fails, the refrigerator may appear powered on — lights work, display is active — but cooling stops entirely or becomes inconsistent. ⚡ Common failure point in LG-built refrigerators manufactured 2018–2024. Part EBR88309704 is the genuine OEM replacement that restores full compressor control, defrost cycling, and temperature regulation to factory spec.
LG Refrigerator EBR88309704
Is This the Right Part?
Confirm the complete model number before ordering. Similar parts may use different connectors, dimensions, hose positions, electrical ratings, or mounting points.
- ✔ Refrigerator powers on — interior lights and display are functional
- ✔ Evaporator and condenser fans spin (or spin intermittently)
- ✔ Power supply and outlet confirmed OK — no tripped breaker
- ✔ ONLY problem is no cooling, compressor not starting, or erratic temperature cycling
- Refrigerator not cooling — freezer may still work partially
- Compressor does not start or runs briefly then shuts off
- Temperature display shows correct set point but interior is warm
- Erratic defrost cycles — excessive frost buildup or no defrost at all
- Error codes on display (e.g., Er FF, Er rF, Er dH on LG models)
- Part Number: EBR88309704
- Type: Main Control Board / PCB Assembly — refrigerator system controller
- Replaces: EBR73304204, EBR73304205, EBR73304206, EBR73304207
- Brands: LG, Kenmore (LG-built models)
- OEM: Yes — genuine LG part
Before ordering, put your LG refrigerator into diagnostic mode (press and hold the Refrigerator + Ice Plus buttons for 3 seconds on most models). Active error codes will confirm whether the main board is the source of the fault or whether a sensor or fan motor is the true culprit — saving you from an unnecessary part swap. If you see Er FF or Er rF, the board is almost always the cause.
Part Details
Use a qualified technician when diagnosis or installation is outside your experience. Gas parts should be installed by a licensed technician.
✅Compatibility & Cross Reference
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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