hi, this coming straight from a qualified hotpoint engineer,
1. UNPLUG APPLIANCE
2. remove 2 screws over bearing housing, use this to keep all screws in.
3. then remove 4 screws from back support located below prerviously removed housing cover
4. remove all remainging screws from heater cover (aprox 10 screws)
5. Check continuity of 2 thermostats located on top of heater,
i guarantee that the one on the left with the green spot on has gone. Use part number 1701583 qty1 Thermostat Kit
6. Replace all covers and plug back in
7.BINGO fixed............pat yourself on the back you saved yourself some money
graham, December 2007