Ok, first check the resistance of the thermostat and one-shot safety stat (black one) on the top of the heater box.
If either one of these are open circuit you'll need to replace the pair.
causes - -:
Check for worn through wires around motor area.
Is the dryer being stopped before the programme's finished?
Try that first, if that doesn't work email me.
Let me know how you get on.
Lynolvinil@aol.com, May 2005