yep, this is the second time my thermostats have gone in two years for this model.
Also check that the elements havent snapped/sheared.
A bit late for a good link but http://www.espares.co.uk/part/tumble-dryers/creda/t622cw/p/1088/720/0/424780/487865/thermostat-kit.html
Dave
August 2007