We had a lightning strike close by. After the strike our tv got blurry and there is no power to the oven. The microwave part of the combo is still working. I took the front cover off and pulled the unit out to check the 20 amp fuse on top. I can't tell if it has tripped or not. It won't move one way or the other. I have only seen it once about 10 years ago when a tech showed me. It is a jenn air jmw953gbaw or 9530