Oven vibrates excessively or buzzes loudly during operation.

Safety first: Switch off the oven before tightening any screws.

• Check installation: Ensure the oven is firmly fixed to the cabinet using the correct mounting screws.
• Tighten panels: Tighten screws on the rear, side, and top panels, as well as the fan cover inside the cavity.
• Remove and reseat accessories: Remove shelves and trays, then test the oven. If the noise stops, adjust or replace the rattling accessory.
• Inspect fan: Ensure the fan blade is not bent and does not touch the cover.