DescriptionThis video provides step-by-step repair instructions for replacing the line fuse on a Whirlpool microwave oven/hood combo (Model #WMH73521CS6). The most common reason for replacing this part is if the microwave will not cook properly.
All of the information for this video is applicable to the following brands:
Whirlpool
Step-By-Step Instructions1
Whirlpool Microwave Oven/Hood Combo - WMH73521CS6
2
Microwave Oven Line Fuse Replacement
3
Tools needed: Phillips-head screwdriver, flat-head screwdriver
5
Be sure to unplug the power cord or shut off the power supply.
6
Use a Phillips-head screwdriver to unthread the three screws securing the top grille.
7
Pull the grille down from the top to detach.
8
Next, unthread the screw securing the control board cover to the frame.
9
Lift the cover up to detach.
10
Disconnect the thermistor wire connecter to move the cover out of the way.
11
We recommend covering the top of the blower housing to prevent the fuse from falling into it.
12
Now use a flat-head screwdriver to pry the old fuse out of the holder.
13
Install the new line fuse by aligning it with the holder and snapping it into place.
14
Reconnect the thermistor wire connecter to the control board.
15
Insert the control board cover tabs into the slots in the frame and thread the screw to secure.
16
Now align the grille tabs with the slots in the frame and snap the grille into position.
17
Rethread the three screws.
18
Having a magnetized screwdriver will make it easier to rethread the screw on the right.
19
Plug the power cord back in or restore the power supply and the microwave oven should be ready for use.