Written by
Elena Navarro Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeC-20
ApplianceWall Oven
Quick answer
C-20 on current Dacor ovens means the oven sensor is open or shorted while the oven is operating.
Model compatibility: Dacor reuses codes across series and model years, so C-20 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
Oven sensor open or shorted while the oven is operating.
C-20 on a Dacor oven means the oven sensor is open or shorted while the oven is operating. Three Dacor manuals carry it: the Modernist Pro range manual (DOP36M86D and DOP48M86D), the DOC30*977D* combi oven manual and the Modernist DOB30M977 wall oven manual.
What the manuals say
The tables name the cause, either an open or a shorted sensor, and list no owner step for C-20. Sensor testing is a technician matter, so note the code and contact service.
Related codes
C-23: temp probe sensor shorted while the oven is operating.
C-30: PCB sensor open or shorted while the oven is operating.
If C-20 returns on your Dacor oven in Los Angeles, call (310) 742-1907 for Dacor oven repair. Have the code, the model number and what you tried ready.
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.
