Error code
R3
Meaning
Refrigerator compressor will not operate or is operating abnormally
Critical
What to do
Why this happens
Start-up fails when there is a short circuit between compressor terminals, a short between IPM (Intelligent Power Module) pins, an IPM module fault, abnormal current, motor restriction or locked rotor, excessive RPM, shunt resistance failure, low input voltage, or over voltage.
How to fix it
This requires a professional technician to test the inverter board and compressor with specialized equipment
SourceSamsung service manual