After 6 visits from repair technicians, I was frustrated and ready buy a new unit. I did some research finding this site, and found others who had similar problems. I also checked my micro switches for the oven door based on this forum, with the power off, performed the door check by replacing the fuses, turning the power on with the door open. The control panel powered on, I shut the door and it immediately blew the rear fuse like others stated. I ordered the fuses, the two mounting brackets and the three micro switches for less than 75 dollars delivered. It took me about an hour to change the switches and replace the covers. Powered the oven up and now it works. Saved 2000 dollars. Thank you to others for sharing their solution.