Kenmore Dryer won't run unless pts held in

Dryer wouldn’t keep running unless Push To Start (PTS) was held in. Propped an iron against the button and now it won’t re-start. I replaced the PTS switch, didn’t work. I ran the factory recommended "factory test" and was able to get all the beeps as indicated. I was testing the heater relay with a test light and it popped very loud. I think I blew the relay. The thermal fuse is fine. From all the reading on this site, it looks like I could have a bad motor. Don’t want to buy the motor if it could be something else. Please help!

The dryer worked fine, just didn’t start properly. Therefore, iron was propped against pts to keep it running. I then put a new pts button in thinking that was the problem. After I realized that wasn’t the issue, I then started testing the circuity and reading the electronics manual tucked away in the cavity. I was able to perform the factory test and everything "beeped" like it was suppose to. I then tested the heater relay incorrectly, hence the loud pop. Now I can’t perform the factory test.