Error Code 44
The main control board can't communicate with the compressor controller
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 44
What This Means
Communication cable disconnected; Inverter PCB defect; Main PCB defect; Cable pin corrosion or damage
What actually causes this:
The cable between them came loose or one of the boards failed
First Thing to Check
Check if the compressor runs at all — if not, this may be a communication error
Parts Involved
How to Fix
- 1
1. Check communication cable between Main PCB and Inverter PCB is fully inserted
- 2
2. Inspect cable for damage or pinching
- 3
3. Use oscilloscope to verify communication signal (if equipped)
- 4
4. Check if inverter board LED is on or blinking
- 5
5. Replace Main or Inverter PCB if cable is normal
This Error Applies To
Samsung RF22M9581 Series Refrigerators
Related Error Codes
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The freezer is running colder than normal or the sensor thinks it is
The main control board can't talk to the display
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The FlexZone compartment has gotten too warm
The humidity monitoring sensor is not working
The compressor power controller has detected an internal fault
The outdoor temperature sensor is not working