Oven makes a metallic clicking or popping noise as it heats and cools.

Safety first: Allow the oven to cool before tightening any screws.

• Identify source: Listen carefully to locate the area of noise (top, sides, rear).
• Tighten fixings: Check and tighten accessible screws securing the inner liners, rear panel, and side panels.
• Check shelves and supports: Remove shelves and side racks to see if the noise reduces. Slight movement of racks can cause clicking; adjust or replace if excessively loose.
• Acceptable behaviour: Some minor clicking from expansion is normal and not a fault if there is no performance issue or burning smell.