Bosch Dryer not heating?

I have a Bosch WTMC 6300US and it is not heating. Earlier I cleaned out the area below the lint filter with a brush and vacuum tube.
I am wondering if this jarred something loose or somehow blocked the exhaust vent. Air does blow through the exhaust vent.
After much googling and reading I am wondering if this might be a thermal fuse problem. (little knowledge, big trouble) I don't even know if my machine has a thermal fuse, or if it does, where I would go to find it. Can you give me more direction on this or point me to somewhere I could go to find out. Also, where might the heating element be. Are there diagrams of all of this that are open to public viewing?

Cindy
October 2009