Hi, Originally the microwave was not working which turned out to be one of the switch triggers. I replaced all the switches and now the microwave fan stays on. Click on fan and it goes to low and high but not off. I suspect I screwed up the wiring ? how, I am unsure since I also replaced the little thermostats on the floor - # 110 and 115. Like I said it works, yet I need to plug it in and to shut off I need to unplug it.