F17
Belling
Cooling Fan Control Fault
Cooling fan runs continuously even when oven is cold and off; error indicates cooling system 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 PCB, Shorted temperature sensor reading hot, Wiring short causing permanent fan supply
How to Fix / Troubleshooting
Safety: Isolate the oven from mains before accessing internal components.
- Allow full cool-down: Ensure the oven has been off for at least an hour. Some models keep the fan running until the cavity cools.
- Check temperature sensor reading: If the sensor falsely reports high temperature, the control may keep the fan on. Test the sensor resistance at room temperature and compare with specification.
- Inspect PCB relay: Remove the control board and locate the cooling fan relay. Look for welded contacts or burning. If stuck closed, the relay or PCB must be replaced.
- Check wiring: Verify that the fan is not being fed from a permanent live due to wiring damage or misconnection.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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