What the Error Code Means
Error code C-31 generally means the oven is not sensing temperature changes as expected during operation.
It points to a temperature monitoring condition rather than a confirmed single failure.
Common Symptoms You May Notice
- The oven stops heating or will not hold the set temperature.
- The display shows C-31 and the oven may beep.
- Cooking results are uneven or take longer than usual.
Most Common Causes (From Least to Most Serious)
- Temporary control or sensing glitch: A brief interruption can cause the oven to misread temperature changes and trigger the alert.
- Door opened during preheat: Opening the door can drop heat quickly, which may confuse temperature monitoring during startup.
- Temperature sensing is outside the expected range: In some cases the oven pauses when it cannot confirm normal heating behavior.
Safe Things You Can Check Yourself
- Turn the oven off and allow it to cool completely before restarting.
- Try preheating again with the door closed to see if the code clears.
- Power cycle the oven: turn it off at the control panel, wait one minute, and turn it back on.
If at any point this feels unsafe or unclear, stop and contact a professional.
When to Stop and Call for Service
- The C-31 code returns after cooling and a reset.
- The oven will not heat at all or shuts down repeatedly.
- You notice smoke, burning smells, or unusual heat.
Typical Repair Cost Range
$150-$450 is typical for professional diagnosis and repair of oven temperature issues, depending on the cause and parts involved.
Costs vary by region, model, and provider. Request an estimate before approving any repair.