Written by
Lena Hartwell Appliance Care EditorPublished October 27, 2026
VERIFIED
Error codeC-23
ApplianceWall Oven
What C-23 indicates
The temp probe sensor has shorted while the oven is in operation. The same entry is printed in the manuals for the Modernist DOB30M977, the DOC30*977D* combi oven and the Pro ranges DOP36M86D and DOP48M86D.
Order of steps from the manuals
Hit OFF/CANCEL and start the oven again.
If the code persists, disconnect all power to the oven for a minimum of 30 seconds and then reconnect.
C-70: open or shorted steam sensor, with the same restart routine.
Dacor oven service in San Francisco
When the restart and power cut leave C-23 on a Dacor oven in San Francisco, consult Dacor wall oven repair and ring (415) 687-5926. Mention that you pressed OFF/CANCEL and disconnected power, and give the model number.
Model compatibility: Dacor reuses codes across series and model years, so C-23 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
C-23 means the temp probe sensor is shorted while the oven is operating.
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.
Seeing this code on your Dacor appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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