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

Safety: Unplug the microwave before replacing the lamp. Avoid touching the new bulb glass with bare fingers.

Steps to replace the lamp:

• 1. Locate lamp access: On many Tristar microwaves, the lamp is accessible from the rear or side via a small cover plate. On some models, you must remove the outer cabinet.
• 2. Remove cover: Unscrew the lamp cover and carefully pull out the lamp assembly.
• 3. Replace bulb: Remove the old bulb from the socket and install a new Tristar-specified microwave cavity lamp of the same wattage and base type.
• 4. Check socket and wiring: Ensure the socket is not burnt or loose. Repair or replace if damaged.
• 5. Reassemble and test: Refit the cover, plug in the microwave, and test the light by opening the door and running a short cycle.