New World
Thermostat Stuck Closed / Sensor Misreading
Oven overheats and burns food even at low settings, no error code.
Advertisements
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.
Advertisements
Possible Causes
Mechanical thermostat contacts welded closed (on older knob models), shorted temperature sensor, failed control PCB not regulating heater
How to Fix / Troubleshooting
Safety first: Turn off the oven and isolate from mains. Do not continue using an overheating oven.
- Check temperature behaviour: Set the oven to a low temperature (e.g., 120°C) and monitor with an oven thermometer. If it climbs far above the set point, the control is not regulating.
- Mechanical thermostat test: On models with a capillary thermostat, remove the control panel and test the thermostat contacts with a meter while turning the knob. If contacts remain closed regardless of setting, replace the thermostat.
- Electronic sensor test: On electronic models, test the NTC sensor resistance. Replace if shorted or out of range.
- Control PCB: If sensor/thermostat is good, the PCB may be driving the element continuously and will need replacement.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Oven Thermostat / Temperature Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements