G E Microware, Runs but does not heat

Hello, My Mircowave runs but does not heat, I checked the fuse and its fine i read somewhere that the magnetron tube is usally the issue, what do you guys think ?

Did you fix it?
I’m having same issue with a Maytag

I replaced the magnetron and still doesn’t heat, so I tried popcorn mode just for kicks and it said sensor error on the panel, I looked up the diagram online and there are 2 sensors, a gas sensor and flame sensor any Ideas ?

I have a 2007 GE Monogram Mircowave. Model ZE2160SF04. It stopped heating and makes a buzzing noise? Wondered if you can offer advice on fixing or replacing?

My GE Space Saver microwave model #JVM 1542 BF 001 comes on make a loud buzzing noise , no heat can you help me ?

Any chance it’s the door switch? Mine was had a similar issue, light worked, exhaust fan worked, control panel worked, but the heating and the turn-table did not. Ended up one of the the door switches controlled only those two things. Easy to test for, and if that’s what it is, cheap too!