I had the same problem. I unplugged the machine & took off the rear panel (bottom left) to reveal the heating elements. There are two shiny discs attached nearby - these are the thermostats. They should both be convex ("bulging" out) if one is concave then it has been tripped. You can either buy a new kit for £20-£25 or try dropping the concave one/ones you have until they pop back out. Reconnect EXACTLY as they were, power up and test. It worked for me!
Marcus
November 2012
stat or element open circuit
CK
October 2012
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