Hi John,
For visual reference the thermostats can be seen here:
http://www.ukapplianceparts.com/laundry_models.asp?search_fd17=37371
They are located at the back of the machine behind the rear cover. The only way to test them without just replacing them is to use a continuity meter to confirm that they are open circuit.
It is very likely that this is the problem, but not 100%. The element may be a fault.
Lee
December 2006