Error Code 25C
The freezer defrost sensor isn't reading temperature correctly
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 25C
What This Means
Defrost sensor housing separated; Incomplete contact at sensor connector; Open-circuited wire in defrost sensor circuit; Short-circuit in sensor wiring; Defective defrost sensor thermistor
What actually causes this:
The freezer defrost sensor became loose or faulty
First Thing to Check
Check if the freezer is frosting up more than normal
Parts Involved
How to Fix
- 1
1. Measure voltage between Main PCB CN20 pins 6 and 8
- 2
2. Voltage should be within 4.5V to 1.0V range
- 3
3. Check sensor connector for loose or corroded pins
- 4
4. Inspect sensor wiring for damage or separation
- 5
5. Test thermistor resistance using temperature table
- 6
6. Check for open or short circuits in wiring
This Error Applies To
Samsung RF2 Series Refrigerators (2024) (2024–present)
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