SMEG
Oven Temperature Regulation Failure
Oven overheats and burns food even at low temperature settings
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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
Shorted oven temperature sensor, Stuck heating relay, Faulty mechanical thermostat (on analog models), Miswired elements
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing controls or elements.
Steps:
- Verify with thermometer: Place an oven thermometer inside and compare actual temperature to set temperature.
- Check sensor: Test the oven temperature sensor resistance; replace if out of specification.
- Inspect control board: Look for a relay that is welded closed (signs of overheating). Replace the control board if a relay is stuck on.
- Mechanical thermostat: On knob-controlled ovens, replace the thermostat if it does not cycle off at the correct temperature.
Warning: Do not continue using an oven that overheats; it can damage cabinetry and pose a fire risk.
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Repair Difficulty
Hard
4/5
Required Part
Electronic Thermostat / Control Board
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