Error Code 31
The FlexZone compartment fan is not working
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 31
What This Means
CV fan motor connector disconnected; CV fan motor defective or seized; Main PCB CN74 relay defect; Fan blade jammed; Wiring harness damaged
What actually causes this:
The fan stopped working, the wire came loose, or ice blocked the fan
First Thing to Check
Check if you hear air flowing from the FlexZone vents — if silent, the fan has failed
Parts Involved
How to Fix
- 1
1. Check voltage at Main PCB CN74 pins 1-5 should be between 7V to 12V
- 2
2. Verify fan motor connector is fully seated
- 3
3. Check for ice or obstructions in fan blade
- 4
4. Spin fan blade by hand for resistance
- 5
5. Replace fan motor if defective
Other Error Codes for RF28M9580
The freezer fan is not working
The main control board can't talk to the display
The ice bucket heater is not working
The FlexZone compartment has gotten too warm
The humidity monitoring sensor is not working
The outdoor temperature sensor is not working
The FlexZone defrost sensor is failing and defrost cycles may not work
The freezer defrost sensor is failing and defrost cycles may not work