Step 1
Disconnect power to the Whirlpool Duet dryer.
Step 2
Open the door on the dryer and find the light bulb cover located in the rear center of the dryer. Use a flashlight to see inside the dryer if necessary.
Step 3
Unscrew the screw that holds the bulb cover in place on the lower right corner using a screwdriver. Set the screw and the cover aside.
Step 4
Spin the old bulb counterclockwise and pull out to remove. Place a new 10-watt appliance bulb back into the socket and turn clockwise to secure.
Step 5
Set the cover back over the light bulb and secure the screw. Restore power to the dryer.