Written by
Elena Navarro Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeC-30
ApplianceWall Oven
Quick answer
C-30 on current Dacor ovens means the PCB sensor is open or shorted while the oven is operating.
Model compatibility: Dacor reuses codes across series and model years, so C-30 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
PCB sensor open or shorted while the oven is operating.
C-30 on a Dacor oven means the PCB sensor is open or shorted while the oven is operating. Listed models: DOB30M977 (Modernist wall oven), DOC30*977D* (combi oven), DOP36M86D and DOP48M86D (Modernist Pro ranges).
What the manuals say
Only the cause is given. No owner step appears next to C-30, so write the code down and arrange service.
Related codes
C-31: abnormally high PCB temperature, where the manuals say to call for service.
C-23: temp probe sensor shorted, which has a restart routine.
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.
