I agree with Gary. If Element is ok, suggest blockage. Check filters , exhaust hose, vent flaps. If a condenser drier, is the condenser clean?. If you have checked all these, pressed the reset on back, it most likely can only be heater or cycling stat (or VERY rarely the timer) Thermostat about £8. If you are not that handy, fitting is much more...
Just a thought.. does it tumble? Could be start capacitor. If it doesn't tumble, fan will not run. Overheat 'stat will operate.
Ric
January 2005