Abnormal Temperature Error
C-21
An abnormal temperature is detected while the oven is on.
Samsung Microwave C-21 Error Code Error Code Possible Causes
- The main PCB is defective.
- The temperature sensor is defective.
- Wiring issue between the main PCB and the temperature sensor.
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This information is provided for educational purposes only. Please consult the appropriate Service Mode or Technical Document for your model. Always take proper safety precautions when installing or repairing any major appliance.