GE Profile Built-In Microwave Fixed then Broke?

The GE Profile microwave (model JE2160SF04) stopped working (no power, no lights/display). Did some research, figured it was probably a fuse that blew… replaced the fuse (with a part from here), and it immediately powered back on. And I did a test check to make sure it would heat, which it did… so all was good.

The NEXT day, tried to cook food… (the lights were still on)… and the turntable wasn’t spinning, no sound of heating… I can hear clicking in the microwave like it’s trying to do something…

The timed cook - the timer part worked fine (timed out and notified me that time was up)… but nothing happened.

I did a bit of research, and some people had this problem with a door switch that needed to be replaced… but wouldn’t that switch also make it NOT make the clicking sound like it was trying to do something?

Any help/wisdom is appreciated. I do have the thermal fuses also, but I thought that’d just prevent the microwave from turning on - not prevent it from heating. Was going to try those when I get time… but until then… Thanks. HR