Written by
Lena Hartwell Appliance Care EditorPublished October 27, 2026
VERIFIED
Error codeC25
ApplianceWall Oven
Where C25 comes from
The ambient temperature probe on the control board has been detected as shorted. The guide describes it as a shorted thermistor, which makes C25 the opposite of C24, where the same probe is open.
Older ovens only
Renaissance wall ovens EORS and EORD (Epicure)
Renaissance wall ovens MORS and MORD (Millennia)
Models 127, 130, 227 and 230
Owner steps
None appear in the guide. Testing the probe is a technician’s task.
To talk about a legacy oven that shows C25, call (415) 687-5926 from anywhere in the Bay Area, or browse Dacor wall oven repair. Keep the code, the model number and anything you have already tried within reach.
Model compatibility: Dacor reuses codes across series and model years, so C25 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
C25 means the control board's ambient temperature probe is shorted (shorted thermistor).
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
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