Error Code 7
Defrost termination control malfunction
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 35
What This Means
Defrost heater housing separation; Poor contact in defrost circuit; Wire cut or short circuit; Temperature fuse failure; Defrost sensor malfunction; Defrost cycle fails to end within 5 minutes of target
What actually causes this:
Temperature sensor or fuse defective preventing shutdown
First Thing to Check
Check if defrost heater turns off automatically
Parts Involved
How to Fix
- 1
Monitor defrost cycle timing - should end when sensor reaches 8°C
- 2
Check defrost heater resistance 260Ω ± 10%
- 3
Verify temperature sensor accuracy during defrost
- 4
Test thermal fuse for continuity
- 5
Check bimetal switch operation
This Error Applies To
Samsung RR39M73 Series Refrigerators
Related Error Codes
Condenser fan motor not operating when required
External humidity sensor reading is out of range
Cooling fan motor is not operating properly
Fridge room temperature sensor is malfunctioning
Freezer defrost temperature sensor malfunction detected
Freezer defrost cycle cannot complete properly
Compressor power control module failure
House electrical supply voltage too high