Originally Posted by denman
I would think the same as you but you have checked everything else and all that is left is the motor.
There are a couple scenarios where it could be the motor.
First it could be that the run winding on the motor is open. The way the motor works is that when it is at rest the start and run windings are in circuit. When the motor gets close to operating speed the centrifugal switch is activated, this disconnects the start winding (leaving it in circuit would overheat the motor). The motor then runs on just the run winding.
Normally a motor will not start on only one winding but yours may be abnormal.
Another possibility is that the motor has a broken wire in it. The wire's ends are touching so it will start up but once there is some vibration the break opens shutting off the motor.
The motor is just my best guess!!
I hate guessing but in this case I cannot think of anything else.
I need to ask you a question hoping you can answer this one. In my breaker box I'm at this time running a 100 amp breaker on my main shut off. And I'm at time using 380 amp's out of this box. The only trouble I've had out of this box up until now is this dryer. Should I pull that 100 amp breaker and add a 200 amp? Hope you can help e with this. Like I said I've had no other trouble out of this just asking for some help before I make a stupid move.