How do I fix error code MOTOR_LOCKED on a Samsung refrigerators?

1. undefined: Check if compressor can be rotated manually 2. undefined: Verify refrigerant charge and pressure readings 3. undefined: Listen for grinding or unusual compressor noise 4. undefined: Check input voltage stability and range 5. undefined: Feel compressor temperature during operation

Samsung Refrigerators2020–present

Error Code MOTOR_LOCKED

Q: What does error code MOTOR_LOCKED mean on a Samsung refrigerators?

Compressor motor is jammed or running at unsafe speed Compressor mechanical jam or seizure; Refrigerant charge problem (too high, causing pressure jam); Weld debris or foreign material in compressor; Rotor touching stator (mechanical failure); Extreme input voltage fluctuation

Compressor motor is jammed or running at unsafe speed

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: Motor Locked or Over RPM

What This Means

Compressor mechanical jam or seizure; Refrigerant charge problem (too high, causing pressure jam); Weld debris or foreign material in compressor; Rotor touching stator (mechanical failure); Extreme input voltage fluctuation

What actually causes this:

The compressor is mechanically stuck or severely overloaded, preventing normal operation

First Thing to Check

Turn off power and try gently rotating the compressor by hand to feel for blockage

Parts Involved

Compressor motorRefrigerant chargeSMPS power supplyInverter control circuit

How to Fix

1
Check if compressor can be rotated manually
2
Verify refrigerant charge and pressure readings
3
Listen for grinding or unusual compressor noise
4
Check input voltage stability and range
5
Feel compressor temperature during operation

This Error Applies To

Samsung RF28T5 Series Refrigerators (2020) (2020–present)

Service manual exact match: RF28T5101SR/AAService manual exact match: RF28T5A01S9/APService manual exact match: RF28T5021S9/EMService manual exact match: RF28T5001S9/MLService manual exact match: RF28T5021B1/COService manual exact match: RF28T5A01SR/AAService manual exact match: RF28T5021SR/AAService manual exact match: RF28T5001SR/AA