On this model, the 20A ceramic fuse is located on the filter board near where the cord comes into the unit.
But if your unit is dead (meaning no
display, no light when you open the door and no beeps when you press a
pad on the keypad) then it may be a blown fuse or a bad T.C.O. (thermal cutout / thermostat) on top of the oven cavity or on the magnetron.
It may also be the bottom TCO, not to be confused with the hood TCO, which should read normally open.
There
should be a "mini-manual" (tech sheet) hidden inside the unit
behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating components.
You can also find
helpful exploded view diagrams and order parts by entering your full
model number from the tag on the oven here.
If you think the problem
is on the control panel, we repair these nationwide by mail
for $39.95 postpaid in most cases in about a week or so.
Feel free to contact me directly (and please remind me of your
full model number from the tag on the unit) for more information & help.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.