One day the unit was working fine. The next day, no heat. It runs through the cycle and appears to be working, turntable turning, seconds counting down, lights on, making the normal sounds - but the food is still cold at the end of the cycle. I read through all the solutions to see if I could solve it that way. I have tried pressing down on the door while running but this did not help so I doubt it's a door switch. I installed the unit myself when I bought it in 2002, and I have been an amateur radio operator for many years so I feel capable of doing any repairs safely.I'm thinking I may have one of the magnetrons from the bad batch I hear GE got one time, or something else in the high voltage circuit is causing the trouble.Thanks for your help!
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