Written by
Lena Hartwell Appliance Care EditorPublished October 27, 2026
VERIFIED
Error codeC75
ApplianceWall Oven
What the display says
C75 appears together with the label COMM ERROR. According to the manual, the strobes serving the CANCEL and ALL keys are in different states, although the redundant pair is supposed to agree.
Response
Call for service. The manual includes no owner steps, and the controller cannot be adjusted by an owner.
Which ovens
Touch-glass Dacor wall ovens
Widths of 27 and 30 inch
Single or double
Series left unnamed
If the display differs
Look at C74 for lost saved data, C72 for boards that are not communicating, or C76 for an oven type configuration error.
Dacor wall oven service in the Bay Area
Reach us at (415) 687-5926 for San Francisco and Bay Area homes, and see Dacor wall oven repair for the work involved. Report the C75, give the model number and say when it began.
Model compatibility: Dacor reuses codes across series and model years, so C75 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
The redundant strobes to the CANCEL and ALL keys on the logic board are in different states.
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.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Dacor appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
