Will everything run, except heat, if you have a faulty door switch?
I have a Maytag Microwave, Model # MMV1174DS-1, which is appears identical to a Whirlpool. Everything appears to run on the microwave (fan, lights, turntable, sounds fine) except it doesn't heat anything. I replaced the diode yesterday. I tried it again after the diode replacement and nothing changed. However, the microwave heated up the water one time when I used the cook-Food Item #-Quantity sequence instead of just a timed cook. I thought I was on to something but I could not get it to heat again after about 15-20 more tries. So, I am thinking maybe it is a door switch that clicked just right, because if it was a high-current failure (diode, capacitor, or magnetron) the microwave would be able to heat after the part failure, right? Would a faulty door switch allow a microwave to run normally with the exception of producing heat?