Oven makes loud rattling or scraping noises when the fan is running.

Safety first: Disconnect power and allow the oven to cool before accessing the fan.

Steps to check:

• Remove the rear inner panel of the cavity to access the convection fan.
• Check for loose screws or panels that may vibrate; tighten as needed.
• Inspect the fan blade for bent fins or contact with the shroud; straighten or replace the blade.
• Spin the fan by hand; if rough or noisy, replace the fan motor assembly.

Warning: Do not bend fan blades excessively; imbalance can cause further noise and wear.