Error Code 31C
The Cool Select room fan isn't working properly
Moderate
Address soon - your appliance may not work properly
Also displayed as: 31C
What This Means
Fan motor feedback signal disconnected; Motor wire separation or loose connection; Defective BLDC fan motor; Main PBA relay failure; Blocked fan rotor
What actually causes this:
The Cool Select fan is stuck or the wire is disconnected
First Thing to Check
Check if air is flowing out of the Cool Select room vents
Parts Involved
How to Fix
- 1
1. Check feedback signal between Main PBA CN40 pins 13 and 15 while fan operates
- 2
2. Signal should have specific frequency when fan spins
- 3
3. Turn off power and wait 5 minutes
- 4
4. Check for rotor obstruction or foreign objects
- 5
5. Verify motor connector at CN40 is fully seated
- 6
6. Check DC 7-12V power supply at CN40 pins 13 and 15
- 7
7. Replace fan motor if voltage is normal but signal absent
This Error Applies To
Samsung RF2 Series Refrigerators (2024) (2024–present)
Related Error Codes
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The fridge fan motor isn't spinning or isn't being detected
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