Error Code COMP-MOTOR-CONSTRAINT
Compressor motor is jammed or running at dangerously low speed
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: LED blinks per inverter protection table
What This Means
Locked rotor operating within 5 seconds; Compressor operating below 1000 RPM for more than 5 seconds; Large sudden input voltage change; Failed compressor or refrigeration cycle blockage
What actually causes this:
The compressor is unable to spin at the correct speed, usually because it is mechanically seized or there is a fault in the position sensing circuit.
First Thing to Check
Listen for the compressor humming loudly without running — that sound indicates a seized motor.
Parts Involved
How to Fix
- 1
Check compressor wire connections at CN102
- 2
Verify resistance of R2 (0.09Ω) on PCB
- 3
Inspect MAIN PCB soldering
- 4
Check compressor and refrigeration cycle
Other Error Codes for RF25C5551SR
Refrigerator compartment temperature is abnormally high
Freezer defrost sensor is faulty and cannot detect when defrost is complete
Refrigerator humidity sensor is faulty
External ambient temperature sensor is faulty
Freezer evaporator fan motor is not running
Refrigerator compartment temperature sensor is faulty or disconnected
Ice Bites maker temperature sensor is faulty
Refrigerator compartment fan is not running