Error Code 4C
Freezer defrost sensor is not responding
Moderate
Address soon - your appliance may not work properly
Also displayed as: 4C
What This Means
Sensor housing separation; Incomplete contact; Open-circuited wire; Short-circuit; Abnormal temperature reading
What actually causes this:
Defrost sensor loose or broken connection
First Thing to Check
Check defrost sensor connector is properly connected
Parts Involved
How to Fix
- 1
Measure voltage of PCB Sensor Check Point #3
- 2
Check Main PCB CN30 pins 1 and 4
- 3
Verify voltage is within 4.5V~1.0V range
- 4
Compare to temperature table after measurement
Other Error Codes for RF22K938AA
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
Cool Select Room defrost heater failed