Posted 03 November 2011 - 08:19 AM
Let's split the problem in half. Use the wiring diagram in the tech sheet to identify the power supply wires to the motor so you can clip your meter leads to them. For this test, it's usually more convenient to make the measurements at the electrically equivalent points on the timer or somewhere other than the motor. Run the dryer. When the dryer stops, you're looking to see if the motor supply voltage drops off, too. If it does, the problem is in the timer or somewhere upstream from it; if not, then the motor has an internal flakey connection or motor wiring harness has a flakey connection. If a connection of flakey, it can go open when it heats up, like from current flowing thru it. The fix may be as simple as disconnecting/reconnecting the motor wire harness connections at both ends of the harness.