Problems with the fan EMERSON MW8107WA. I have problem with the micro wave when closed the door

Question

I have problem with the micro wave when closed the door the fan starting, where i can get a diagram. because i check all the switch and connections and all seem good. I hope your answer THANKSI've got an Emerson MWG9111SL microwave that does not shut off. The fan just keeps running until it's unplugged. When I plug it back in the fan immediately comes on.