My dryer will start and then stop when it gets hot

Apr 21, 2009

- A motor will stop if it overheats, there's a sensor in the motor to protect it. Some dryers have a center bearing that wears out. There are heat sensors all over the place that can stop the machine if that area overheats, they are mighty hard to diagnose, because by the time you get to them, they are cool again. Low voltage, which can be caused by loose wiring anywhere from the breaker all the way through to the white wire connection at the breaker box, will cause a motor to stop. You are going to have to attack this problem scientifically. Measure the voltage while the machine is running, it must not change. Does the motor stop, or does the heat just turn off? Look at the schematic, you'll see the circuit for the motor. It includes the door switch, the timer, all the sensors, and the start button. After starting, the start button should be out of play, but check to make sure the run circuit does not go thru it too. Run the machine 'air only', see how the motor runs alone.