How to Fix / Troubleshooting

Safety first: Unplug and cool the appliance before opening.

Confirm source: Run the unit briefly and listen carefully to localize the squeal to the fan area (do not remove covers while powered).
Access motor: Remove the top cover to expose the fan motor. Spin the fan by hand; a squeal or roughness confirms bearing wear.
Temporary lubrication (not always recommended): For sleeve‑bearing motors, a drop of high‑temperature light machine oil at the shaft entry may temporarily reduce noise, but this is not a permanent fix.
Replace motor: For a lasting repair, replace the convection fan motor assembly with a compatible Severin part.

Warning: Do not use penetrating oils or cooking oil on the motor; they can damage insulation and attract dust.

High‑pitched squealing noise from the top of the air fryer during operation.

Possible Causes