F20
Bauknecht
General Heating Circuit Fault
Display shows F20, oven does not start heating or stops shortly after start
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open heating element (bake or grill), Faulty safety thermostat (thermal cut-out), Loose wiring at element terminals, Failed relay on control board
How to Fix / Troubleshooting
Safety first: Disconnect power and allow the oven to cool before removing panels.
- Test heating elements: Access the rear of the oven and disconnect the bake and grill element terminals. Measure resistance with a multimeter. An open circuit indicates a failed element that must be replaced.
- Inspect terminals: Look for burnt or loose spade connectors at the elements. Clean and tighten or replace connectors as needed.
- Check safety thermostat: Locate the high-limit thermostat (usually on the top of the oven cavity). Test for continuity. If open and not resettable, replace it.
- Control board relay: If elements and thermostat are good, the heating relay on the EOC may be defective. Replace the EOC if no voltage is supplied to the elements when heating is commanded.
Warning: Do not bypass safety thermostats; they are critical for fire prevention.
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Repair Difficulty
Hard
4/5
Required Part
Bake Heating Element
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