Microwave interior light flickers or dims significantly during operation.

Safety first: Unplug the microwave before accessing the lamp area.

Step-by-step checks:

• 1. Check other appliances: If lights in the room also dim, the household circuit may be overloaded. Move the microwave to a dedicated circuit.
• 2. Replace lamp: Access and replace the cavity lamp with the correct type. Ensure it is firmly seated.
• 3. Inspect socket: Check for heat damage or loose contacts at the lamp socket. Replace if necessary.