Dryer won’t heat or stay running unless start button is pushed

Went to start dryer today and when I released the start button, dryer shut off. I noticed that it did not get hot inside either. My husband checked the thermal fuse and it measured good. Someone told us that it is most likely the motor. I am holding on hope that I don’t have to buy a new one. I read a lot of posts from other stating it could be control switch or switches on motor?!? Thanks for any help!