Microwave interior light does not turn on when the door is opened or during cooking, but the unit heats normally.

Safety: Unplug the microwave before replacing the lamp.

User-level (if lamp is accessible behind a service cover):

• Remove the lamp cover according to the user manual.
• Replace the bulb with a genuine Balay cavity lamp of the correct type and rating.

Technician-level:

• If the lamp is not user-accessible, remove the outer cabinet to access the lamp holder.
• Check wiring and the lamp relay on the control PCB if a new bulb does not light.

Do not exceed the specified lamp wattage, as this can overheat the lamp housing.