This dryer will not start 90% of the time. The start button buzzes but the drum wont turn (both filled and empty). Sometimes the drum will turn and then it will run for a while with heat but maybe not complete the cycle. It seems to me a high friction problem somewhere in the motor/drum/fan system. I found if I taped the door switch closed, and reached in to give the drum an initial push when I press the start button, it will run for a while, but won't start again even with "help" until the next day.
How can I find out what's causing the problem and replace, lubricate or clean the problem parts?