Error Code 40
The ice maker's internal fan is not working
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 40
What This Means
Ice maker fan motor connector disconnected; Ice maker fan motor defective; Ice maker module defect; Wiring harness damaged
What actually causes this:
The ice maker fan motor failed inside the ice maker unit
First Thing to Check
Check if ice production has stopped — no fan means no new ice will be made
Parts Involved
How to Fix
- 1
1. Check voltage at Main PCB CN52 pins 1-6 should be between 7V to 12V
- 2
2. Verify ice maker fan motor connector is seated
- 3
3. Listen for fan noise in ice maker
- 4
4. Replace ice maker assembly if fan is defective
This Error Applies To
Samsung RF22M9581 Series Refrigerators
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The compressor power controller has detected an internal fault
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