Error Code 44C
Main board and compressor inverter board cannot communicate
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 44C
What This Means
Loose or damaged communication cable between Main PCB and Inverter PCB; Defective Main PCB; Defective Inverter PCB
What actually causes this:
Communication harness between the two boards is loose or one of the PCBs has failed.
First Thing to Check
Reseat the communication connector between the Main PCB and Inverter PCB in the machine compartment.
Parts Involved
How to Fix
- 1
Check communication cable connections between Main PCB and Inverter PCB
- 2
Confirm cable has no breaks or pinches
- 3
Replace Main PCB first, then Inverter PCB if communication error persists
- 4
Use oscilloscope to confirm communication signal if available
This Error Applies To
Samsung RF29CB9900 Series Refrigerators (2023) (2023–present)
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