F16
DeLonghi
Cooling Fan Relay Stuck / Control Logic Fault
Oven display shows F16 and the cooling fan runs continuously even when the oven is off.
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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 closed fan relay on control board, Shorted triac driving fan motor, Control board firmware glitch, Miswired fan circuit after previous repair
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before accessing the control panel or internal wiring.
- Power reset: Leave the oven powered off for 15 minutes, then restore power. If the fan stops running and F16 clears, it may have been a temporary logic error.
- Inspect wiring: Remove the top or rear panel and trace the cooling fan wiring back to the control board. Ensure there are no direct shorts or bypassed connections.
- Check control board: On the control board, identify the fan relay or triac. Look for signs of overheating or welded contacts.
- Replace control board: If the fan is powered whenever the oven has mains power and wiring is correct, the relay/triac is likely stuck and the control board should be replaced. This repair is best done by a professional.
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Repair Difficulty
Hard
4/5
Required Part
Main Electronic Control Board (EOC)
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