F15
Bertazzoni
Cooling Fan Stuck On
Oven fan runs continuously even when oven is off and cool; error indicates cooling fan or sensor fault.
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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
Stuck cooling fan relay on control board, Shorted cooling fan thermostat, Misreading cavity temperature sensor, Wiring short to fan circuit
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before accessing internal components.
- Allow full cool-down: Confirm the oven is truly cool. Some models keep the fan running until internal temperatures drop below a threshold.
- Check cooling thermostat (if fitted): Locate the thermal switch controlling the fan. Test for continuity at room temperature; if it remains closed when cool, replace the thermostat.
- Inspect control board: If the thermostat is not used or tests good, the fan relay on the main PCB may be welded closed. Visual inspection may show heat damage; replace the control board.
- Check wiring: Look for any direct short between live feed and the fan motor wiring that could bypass control.
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Repair Difficulty
Hard
4/5
Required Part
Cooling Fan Thermostat
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