Error Code 4
Cooling fan motor fault or motor restriction detected
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 22 (RR39/RR14) / 21 (RZ32/RZ11/RQ32)
What This Means
Fan motor restriction or jam; Feedback signal line contact error; Separation of motor wiring; Defective fan motor; Blocked fan intake
What actually causes this:
The fan that circulates cold air in the fridge compartment has stopped working, got jammed with ice, or its control signal circuit is broken
First Thing to Check
Listen if you hear the fan running; if not, unplug the refrigerator and manually spin the fan blade to see if it moves freely
Parts Involved
How to Fix
- 1
Check voltage between MAIN PCB CN31 #10 ↔ #11 (should be 7V~12V)
- 2
Verify fan blade rotates freely
- 3
Inspect motor wiring connections
- 4
Check for ice or debris blocking fan
This Error Applies To
Samsung RR39T74 Series Refrigerators
Related Error Codes
Room temperature sensor circuit failure detected
Exterior room temperature sensor circuit failure
Freezer defrost heater approaching shutdown failure within 5 minutes
Compressor motor drawing excessive current indicating short or mechanical jam
Inverter power module temperature exceeded safe limit and shut down
Defrost cycle temperature sensor circuit failure
Freezer defrost heater circuit malfunction or stuck heater
Compressor power control IC fault or compressor winding fault detected