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

1. undefined: Check CN04 connector for shorts between U, V, W phases 2. undefined: Verify DC 13.5V+ at inverter supply 3. undefined: Inspect IPM (Integrated Power Module) for damage 4. undefined: Check compressor windings for phase-to-phase shorts 5. undefined: Verify cooling cycle charge and operation

Samsung Refrigerators2020–present

Error Code SPM_FAULT

Inverter power module detected critical electrical fault in compressor circuit

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: SPM Fault

What This Means

Short circuit between compressor U, V, W phases at CN04; Short circuit or internal failure in IPM pins (1-26); Drop in IPM operating voltage below DC 13.5V; Compressor mechanical problem detected by inverter

What actually causes this:

The compressor motor has an internal short circuit or the power inverter detected a dangerous electrical condition

First Thing to Check

Check compressor connector CN04 for visible shorts or damage

Parts Involved

Smart Power Module (IPM) on MAIN PCBCompressor CN04 connectorInverter control circuit

How to Fix

1
Check CN04 connector for shorts between U, V, W phases
2
Verify DC 13.5V+ at inverter supply
3
Inspect IPM (Integrated Power Module) for damage
4
Check compressor windings for phase-to-phase shorts
5
Verify cooling cycle charge and 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