So your dryer powers up, you select a cycle and push start and the dryer hums for a coupla seconds and then goes quiet for a while. This usually indicates something is blocking the drum from rotating. A sock stuck in the blower would do it.
A quick test to see if you have a drum blockage problem is to simply open the door and try to turn the drum by hand. If you can’t turn the drum manually, ain’t no way that dinky motor in there is gonna turn it, ether! Can I hear an, “A-freakin-men?”
If you need to get inside the dryer to remove a sock stuck in the blower or some other rolling problem, Sublime Master john63 over at the Appliantology appliance repair forums steps us over the rice paper without a single tear or wrinkle ==> LINK
To learn more about your dryer, or to order parts, click here.