Error Code 44
The main control board can't talk to the compressor controller
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 44
What This Means
Communication cable disconnected or loose; Communication cable damaged; Main PCB communication port failure; Inverter PCB failure; Compressor communication issue
What actually causes this:
The communication cable came loose or a circuit board is broken
First Thing to Check
Look behind the refrigerator for loose cables connecting main board to inverter board
Parts Involved
How to Fix
- 1
1. Check all cables between Main PCB and Inverter PCB for secure connection
- 2
2. Check cable for visible damage or bent pins
- 3
3. Use oscilloscope to verify signal on communication lines
- 4
4. If cable and connections appear normal, replace Main PCB
- 5
5. If Main PCB replacement doesn't fix issue, replace Inverter PCB
This Error Applies To
Samsung RF22NP Series Refrigerators (2018) (2018–present)
Related Error Codes
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An I/O control chip on the main board is not responding