Bella air fryer fan continues to run for a long time after cooking has finished.

Safety first: It is generally safe for the fan to run after cooking; do not unplug the unit immediately if it is in a cool‑down cycle.

Assessment:

• Check the user manual; many Bella models intentionally run the fan for a few minutes after cooking to cool internal components.
• If the fan runs continuously for more than 15–20 minutes, unplug the unit.

Internal checks:

• Inspect the temperature sensor placement; if it is too close to the heater or covered in grease, it may read high and keep the fan on.
• If the sensor is correct and the fan still never shuts off unless unplugged, the fan control circuit on the PCB may be stuck on, requiring board replacement.