It took a while to figure out what was going on but I noticed the oven light would come on and the convection fan would shut off. I would push the door shut and everything would work for a while and then it would start all over. I noticed the oven gasket was very hard in places and that was what was causing the door to not close. It was not a hinge problem. Replace the gasket which was very easy to do yourself and your problems will go away.