What does error code MAIN-INVERTER-COMM-ERROR mean on a Samsung refrigerators?

Main board and compressor inverter have lost internal communication Failed Main/Inverter PCB; Internal PCB communication fault

How do I fix error code MAIN-INVERTER-COMM-ERROR on a Samsung refrigerators?

1. undefined: Since Main and Inverter PCB are one board, check for obvious PCB damage 2. undefined: Power cycle the refrigerator 3. undefined: Replace the Main PCB if error persists

Samsung Refrigerators2022–present

Error Code MAIN-INVERTER-COMM-ERROR

Main board and compressor inverter have lost internal communication

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: Specific LED blink pattern

What This Means

Failed Main/Inverter PCB; Internal PCB communication fault

What actually causes this:

The main circuit board has an internal fault that prevents it from controlling the compressor, so the fridge will not cool.

First Thing to Check

Try power cycling by unplugging for 5 minutes.

Parts Involved

Main PCB / Inverter PCB (combined)

How to Fix

1
Since Main and Inverter PCB are one board, check for obvious PCB damage
2
Power cycle the refrigerator
3
Replace the Main PCB if error persists

This Error Applies To

Samsung RF25C5 Series Refrigerators (2022) (2022–present)

Service manual exact match: RF25C5151SR/AAService manual exact match: RF25C5151**Service manual exact match: RF25C5551**Service manual exact match: RF25C5551SR/AA