Error Code 31C
Cool Select Room fan not running or not providing feedback
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 31C
What This Means
Feedback signal line contact error; Motor wire separation; Defective CV BLDC fan motor
What actually causes this:
Fan motor has failed or the feedback wire is disconnected.
First Thing to Check
Run Forced Operation and check whether the CV compartment fan audibly operates.
Parts Involved
How to Fix
- 1
Check feedback signal between Main PCB CN20 pins 20 and 24
- 2
Confirm drive voltage at CN40 #13 and #15 is DC 7–12V
- 3
Verify Cool Select compartment door switch is closed
This Error Applies To
Samsung RF29CB9900 Series Refrigerators (2023) (2023–present)
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