Your dishwasher then has an electrical problem and will need diagnosis and repair if you wish to continue to use it.
It may be a problem with the machine's heating element but that's just conjecture - there are other electrical components in the machine that might cause a breaker to trip - solenoids for water inlet and detergent flap - main water circulating pump.
Careful observation of just when the fault happens might point to the cause if you wish to fix it yourself - otherwise an appliance engineer will be needed.
Good luck...
Peccavi, November 2009
