Error Code 81
Compressor won't start or keep running
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 81
What This Means
Inverter PCB soldering defect; DC 15V power supply too low; Compressor mechanical jam; Compressor winding failure; Refrigerant circulation issue
What actually causes this:
The compressor controller board has a defect, or the compressor itself is failing
First Thing to Check
Listen for compressor humming sound when fridge runs
Parts Involved
How to Fix
- 1
1. Check inverter PCB for visible soldering defects
- 2
2. Measure DC 15V output on inverter — should be at least 13.5V
- 3
3. Check compressor wire connections
- 4
4. Verify compressor starts with 'Force Run' command
- 5
5. Check refrigerant charge and circulation
This Error Applies To
Samsung RF22NP Series Refrigerators (2018) (2018–present)
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