Microwave interior light does not turn on, but unit heats and operates normally.

Safety: Unplug the microwave before attempting to replace the lamp. Some Samsung models require cabinet removal to access the bulb.

• Check manual: Refer to the user manual to see if the lamp is user-replaceable. Some OTR models have an access panel.
• Replace bulb: If accessible, remove the lamp cover, unscrew the old bulb, and install a new microwave-rated bulb of the same type and wattage.
• Professional service: If the bulb is not accessible from the outside, a technician should remove the cabinet and replace the lamp or repair the lamp circuit.