What you are actually seeing
- The clock resets whenever the oven is used
- A code appears on the display
- The oven starts on its own or will not stop
- Not this fault: A dark panel that comes back when the door is moved
Ranked causes on a Contoure microwave
- Outlet, plug or supply marginal — Ranked here because: a coach appliance can be fed from shore power, a generator, an inverter or the battery bank, and a supply that is present but weak produces faults that look like component failures
- Internal line fuse blown — Ranked here because: the converter and the transfer switch sit between the appliance and whatever is actually powering it, and both fail in ways that look like a dead machine
- Door interlock circuit not making — Ranked here because: a door latch and gasket that has been slammed by road motion is a routine finding
- Steam or grease behind the membrane — Ranked here because: an RV vent run is short, tightly bent and easy to crush behind the appliance
- Child lock or control lock set — Ranked here because: coach appliances are used intermittently and stored for months, which produces its own fault pattern
What to check, and in what order
- Press every button in turn and note which respond
- Close the door firmly and try start again
- Watch whether the clock resets while the oven is running
- Look up the child-lock or control-lock combination in the manual and release it
Steps you can safely do yourself
- Watch whether the clock resets while the oven is running — Tools: none — Estimated time: a few minutes
- Look up the child-lock or control-lock combination in the manual and release it — Tools: owner manual — Estimated time: a few minutes
- Plug a lamp into the same outlet and confirm it lights, then plug the oven in with no extension lead — Tools: lamp or outlet tester — Estimated time: a few minutes
- Unplug the oven for five minutes and plug it back in — Tools: none — Estimated time: under ten minutes
- Press every button in turn and note which respond — Tools: none — Estimated time: a few minutes
Safety
Safety
unplug-before-service branch-circuit-15-20a
When to call a technician
the panel is confirmed dead with a good outlet and no lock set the oven starts on its own or runs with the door open a code names the door circuit or a temperature sensor
Nearest pages
What this page does not cover
Not this fault: the family pages for the refrigeration, cooking and laundry lines Not this fault: model-specific pages once the model and serial label is read
Links: - [Common Contoure Microwave Problems](/blog/contoure-microwave-problems) - [Common CONTOURE Dryer Problems](/blog/contoure-dryer-problems) - [Common CONTOURE Refrigerator Problems](/blog/contoure-refrigerator-problems) - [Contoure Microwave: Abnormal Noise or Vibration](/blog/contoure-microwave-abnormal-noise)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
