yh mate if you take the silver pannels off the back you will see the heater take the heater off the plate you will see two round thermostats on the back of them (black side) the one will have a little hole in use a neddle or something small enough for the hole gently push it in and you will hear a click hey presto reset
belive its one dodgey place to hide the reset had to do it a few times my self
hope this helps you mate
simon, September 2010