Error Code 27C
The external air temperature sensor isn't working
Moderate
Address soon - your appliance may not work properly
Also displayed as: 27C
What This Means
External air sensor housing separated; Incomplete contact at sensor connector; Open-circuited wire in sensor circuit; Short-circuit in sensor wiring; Defective external temperature thermistor
What actually causes this:
The external temperature sensor is loose or failed
First Thing to Check
Check if the refrigerator is in a very hot or cold location
Parts Involved
How to Fix
- 1
1. Measure voltage between Main PBA CN90 pins 12 and 2
- 2
2. Voltage should be within 4.1V to 0.6V range
- 3
3. Check sensor connector for loose or corroded pins
- 4
4. Inspect wiring for damage or separation
- 5
5. Test thermistor resistance at actual ambient temperature
- 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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