Oven makes loud banging, popping, or metallic noises during heating and cooling.

Safety first: Turn off power before tightening any internal screws.

• Identify source: Listen carefully to locate the general area of the noise (back, sides, top).
• Tighten hardware: Remove rear and side panels as needed and tighten any loose screws securing the oven liner, fan, or brackets.
• Check racks: Ensure racks are properly seated and not warped. Replace if severely bent.
• Normal expansion: Some mild popping is normal as metal heats and cools. Only address if noises are unusually loud or accompanied by performance issues.