Sadly I'm back again, after the disaster with my Family hub refrigerator (quit working after 2 months). I return 2 years later with a new issue. My samsung oven (bought all samsung appliances for my house 5 total) is dangerously overheating (C-21 code) I had to unplug it from the wall. Why are samsung appliances like this?
C21 error code on a Samsung range indicates that the internal temperature is too high. This can be caused by a sensor malfunction or the control detecting a higher heat than expected.
To fix this error, you can try the following:
Press OFF/CLEAR
Restart the oven
Disconnect all power to the range for at least 30 seconds and then reconnect the power
Hello! Thank you for reaching out! If the information from @meself did not help then this will be something that will require service. Please don't hesitate to call in to get this looked at as soon as possible. You can call in at 1 (800) 726-7864, or if you prefer you can send me or any of the other moderators a private message with your full model and serial number.
