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

Safety first: Turn off power and allow the oven to cool before removing the rear interior panel.

• Access the fan: Remove the screws holding the rear panel inside the oven cavity to expose the convection fan.
• Check for debris: Remove any loose screws, foil, or food particles lodged around the fan blade.
• Tighten fan nut: Ensure the fan blade is securely fastened to the motor shaft. Tighten the retaining nut if loose.
• Inspect blade and motor: If the blade is bent or the motor shaft has play and makes grinding noises when spun by hand, replace the fan blade and/or motor.