I could hear the dryer motor hum, but it would not run. There was nothing obstructing the motor from turning freely so I assumed I needed a new motor. I went ahead and ordered a new pulley switch to change out while I was in there just in case. The parts arrived faster than expected. I changed the switch first and then checked the old motor which surprisingly fired right up. Now I have to decide whether to return the new motor or keep it as a spare.