Things You'll Need:
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Step 1
Unplug the microwave or, from the circuit breaker, disconnect the power.
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Step 2
Use your screwdriver to remove the cover over the light bulb. You can find the cover in the back of the microwave or on the side. If you don't see a cover, you'll have to hire a technician to replace your light bulb. Place the screw nearby, as you'll need it again to replace the cover.
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Step 3
Gently push in the burned-out bulb and turn it counter-clockwise until it is completely unscrewed.
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Step 4
Replace the old light bulb with a new bulb. Depending on the microwave size and model, you may need a 20-watt, 25-watt or 30-watt bulb. When replacing the bulb, press gently and turn clockwise.
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Step 5
Use your screwdriver and the original screw to replace the cover on the back or side of your microwave.






