The fuse is located behind the face above the door. You have to take out 2 screws ,then pull the face plate off. Then look to the right of there, and you can see the fuse. You'll take out two more screws to get to it. It is a glass buss fuse. Becareful when putting it back together and tap lightly on things. I've replaced it 4 times in 2 days because I was hitting the face to hard...lol
Replaced my OEM with this Frigidaire. Very nice microwave. Was same mounting points as original, no mods required. Only had to turn the vent to vent outside. Also allowed me to insulate around the vent better than what manufacturer did.