Error code
Samsung / Microwave oven
C-21
The sensed temperature exceeded the limit for the operating mode.
What it means
The sensed temperature exceeded the limit for the operating mode.
This explanation is shared only by models whose manufacturer documents the same code, meaning, and guidance.
Manufacturer guidance
- Turn the oven off, unplug it, and let it cool.
- If C-21 returns, contact Samsung service.
Manufacturer source
Models documented with this signal
Select your exact model below to open its manufacturer source. Manual editions and model revisions can differ.
If there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.