Error Code 21C
Freezer fan motor is not working
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 21C
What This Means
Feedback signal line contact error; Motor wire separation or disconnection; Motor bearing failure; Motor speed sensor malfunction; Blocked fan
What actually causes this:
Motor connection loose or fan blocked by ice
First Thing to Check
Check if freezer fan spins freely without obstruction
Parts Involved
How to Fix
- 1
Check voltage at MAIN PCB CN75 pins 1 and 4
- 2
Verify voltage is between 7V~12V
- 3
Inspect motor wiring for damage
- 4
Check motor for physical obstruction
Other Error Codes for RF22K938AA
Freezer defrost sensor is not responding
Ice duct heater not working properly
Cool Select Room defrost sensor error
Fridge humidity sensor not responding
Ice bucket heater is malfunctioning
Ice maker temperature sensor failed
Ice maker is not making or dispensing ice
Freezer is too warm