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

Safety: Unplug the microwave before replacing the lamp. Glass fragments and live parts can be hazardous.

Steps:

• 1. Consult manual: Some Blomberg models allow user lamp replacement via a small access panel; others require cabinet removal.
• 2. Access lamp: Remove the lamp cover or outer cabinet as instructed. Carefully remove the old bulb.
• 3. Install correct bulb: Replace with the exact type and wattage specified by Blomberg (typically a special microwave-rated bulb).
• 4. Check door switch: If the new bulb does not light, the door sensing switch or wiring may be faulty and require professional service.