How do I fix error code COMP-OVER-VOLTAGE on a Samsung refrigerators?

1. undefined: Measure AC voltage at the power outlet 2. undefined: For 110-127V models: must be below AC 155V 3. undefined: For 220-240V models: must be below AC 310V 4. undefined: Check PCB bottom side soldering at R511, R512, R513

Samsung Refrigerators2022–present

Error Code COMP-OVER-VOLTAGE

Incoming power voltage is too high for the compressor to run safely

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: LED blinks per inverter protection table

What This Means

AC input voltage above AC 155V (110-127V models) or AC 310V (220-240V models); Short resistor R511, R512, or R513 (DC link resistors) on PCB

What actually causes this:

A power surge caused the voltage to spike above the safe limit, triggering the compressor protection system.

First Thing to Check

Check if other appliances in the home experienced power issues at the same time.

Parts Involved

Main/Inverter PCBDC link resistors R511/R512/R513

How to Fix

1
Measure AC voltage at the power outlet
2
For 110-127V models: must be below AC 155V
3
For 220-240V models: must be below AC 310V
4
Check PCB bottom side soldering at R511, R512, R513

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