Reminder: Your warranty does not cover repairs to parts or systems to correct product damage or defects caused by unauthorized service, alteration, or modification of the appliance.
This video provides step-by-step instructions for replacing the bottom panel light bulb on Whirlpool microwaves. The most common reason for replacing the light bulb is if it has burned out.
To replace the bottom panel light bulb in your microwave oven remove the mounting screw securing the light lens cover.
Unthread the old bulb if still in place.
Install the new light bulb by threading it into the socket.
With the bulb in place, lift up the cover and replace the mounting screw to secure.