What C25 Means
C25 is the partner of C24: the control board’s own temperature thermistor on a Renaissance EOR/MOR oven reads shorted rather than open. The oven cannot trust its board temperature and stops.
Common Causes of C25
- Board thermistor shorted internally
- Contamination or heat damage on the board around the thermistor
🔧 One Safe Check You Can Try
A breaker reset of a minute or so is worth one try. If C25 returns, leave the oven off and arrange service.
⚠ Why You Shouldn't Go Further Than That
- Board-level diagnosis on an oven that sits in a wall cabinet; the control has to come out to be inspected.
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.