Dacor Wall Oven C-20 Error Code
Current Dacor ovens flash C-20 when the oven sensor is open or shorted during operation; the manuals add no owner step.
Model Reference
Dacor DOB30P977DS Double Wall Oven Repair
Two cavities, one cabinet opening, and a repair plan that treats each oven separately.
Dacor repairSan Francisco & the Bay Area
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Model number
DOB30P977DS
About this model
Model overview
The DOB30P977DS is listed as a 30″ double wall oven in the Transitional series. If you own one, the oven is part of the broader range described in Dacor wall ovens.
Two ovens, one fault, or two?
With a double oven the first question is whether the trouble affects one cavity or both. A lower oven that heats while the upper stays cold points to something specific to the upper side. If both go quiet together, the cause is more likely shared: power at the cabinet, the control, or a communication problem between boards. Tell us which cavity you were using, what you were cooking, and whether the other one behaves normally. That single detail often shortens the diagnosis a great deal.
Installation points for a stacked pair
- The unit is tall and heavy, so a path from the entry to the kitchen should be clear, which matters in narrow San Francisco stairwells.
- The cutout leaves little room around the sides. Removing the oven slowly protects the cabinet faces.
- Heat from the lower cavity rises, so a blocked vent or crowded cabinet above can show up as odd behavior in the upper oven.
- A microwave or warming drawer above or below shares the same wall, and we check that its clearance has not been compromised.
Typical symptoms
Owners usually report one of three things: a cavity that will not reach temperature, a door that stays locked after cooking, or a display that shows a code. The door problem is covered in our door will not unlock article. Codes with a latch meaning, such as U50 and F8, are described by meaning only, because the cause has to be confirmed at the oven.
Owner checks from the outside
Look at the breaker, make sure the door shuts square, write down any code, and perform one controlled power reset. Skip anything that involves opening panels or touching wiring.
Ready to book? Start with Dacor wall oven repair, mention the DOB30P977DS and which oven is affected, and we will schedule a diagnosis with a written estimate and no work started without your approval.
Frequently asked questions
It is a double wall oven, 30 inches, in the Transitional series.
Not necessarily. A fault limited to one cavity is often easier to narrow down, and the estimate is written before any repair.
If both need attention, we can look at both during one diagnosis and list each item separately in the estimate.
On a double oven it is usually on the frame, visible with the door open. Take a photo if the label is hard to read.
No. Running extra cycles on an oven that already misbehaves can make a fault worse, so book a diagnosis instead.
Model-information disclaimer. Confirm your exact model number and specifications with your appliance documentation before booking a repair. Model pages are for identification and compatibility reference.
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Wall Oven Repair in San Francisco
Dacor single, double and combination wall oven repair in San Francisco and the Bay Area, covering heat, door locks, cooling fans, display…
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Phone
(415) 687-5926
Hours
Mon–Sat: 8:00 AM – 7:00 PM
Service area
San Francisco Bay Area, California