Leisure Thermostat Stuck Closed / Sensor Misreading

Oven overheats and burns food even at low settings, no error code

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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

Mechanical thermostat contacts welded closed (on rotary-thermostat models), Shorted temperature sensor, Faulty control board not cycling element, Miscalibrated thermostat knob

How to Fix / Troubleshooting

Safety: If the oven is overheating, switch off power immediately and do not use until repaired.

  • Check thermostat setting: Confirm the temperature knob markings align with the pointer. A slipped knob can give false settings.
  • Test sensor or thermostat: On electronic models, measure the NTC sensor resistance; replace if shorted. On mechanical models, test the thermostat contacts for continuity; they should open when the shaft is turned to off.
  • Observe cycling: With a thermometer inside, run the oven and see if the element cycles off when temperature is reached. If it stays on continuously, the thermostat or control board is faulty.
  • Replace faulty control: Replace the thermostat (mechanical) or sensor/PCB (electronic) as indicated by tests.
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Repair Difficulty

Medium 3/5

Required Part

Oven Thermostat or Temperature Sensor
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