What C24 Means
C24 on a Renaissance-series Dacor wall oven means the thermistor that watches the control board’s own temperature reads open. Without it, the control cannot protect itself, so it shows C24 instead of cooking.
Common Causes of C24
- Ambient thermistor on the control board failed open
- Thermistor connection broken
🔧 One Safe Check You Can Try
Switch the breaker off for a minute and back on. That is the only owner step; an open thermistor does not heal itself if it has truly failed.
⚠ Why You Shouldn't Go Further Than That
- The thermistor belongs to the control board assembly, so the fix is at board level.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.