C-21
Oven sensor malfunction
The oven has detected a sensor malfunction.
What this code means
The oven has detected a sensor malfunction.
Possible causes
- Temperature sensor fault
- Sensor wiring or connection problem
- Temporary control error
Common symptoms
- C-21 displayed
- Oven may stop or refuse normal operation
Checks to make
- Turn the oven off and restart it
- If the fault remains, isolate power for at least 30 seconds and reconnect
- Arrange service if the code returns
Safety
- Do not access internal oven wiring or sensors unless competent and the appliance is isolated.
Model notes
Samsung groups C-20, C-21 and C-22 as sensor-malfunction codes.