Diplomat dishwasher blows fuses

Question

I have a diplomat dishwasher it was working then in mid cycle it blew the house fuse I replaced the fuse in the plug and switched the house fuse back on when turning on the dishwasher it blew again, I was told there is a heater reset button on the bottom under the thermostat so i have taken it apart and the button does not seem to be a reset is it likely to be the thermostat?