Tripping out

Oh oh. Most probably you have an ( electrical ) earth-leak in your dishwasher.(DW)

In many cases this happens when the liquid in your DW must be heated. This heating is done by a resistor which you can see in the bottom of your DW ( a tube ).When heating up some liquid will get thru minor metal cracks in the outer resistance tube causing a path able to conduct some "leak"-current to the earth, and cause the the "differential" circuit breaker to switch off all current supply in house. ( Thanks it exist and works, it saved many lives)

Best is to ask a repair-service to do the job; this can be done at your home.At the same time they have to check the thermal protection in the DW.

If the resistor is not the failure, the electrical leak can come from other locations in the DW ; an isolation failure within the cabling or around the pump. It is not always evident to trace such an electrical leak, a repair service normally use a Megger ( this is real British ) to trace.

Hopefully you don't have to manual dishwash too long.

This fault could be due to a leak, perhaps a small crack, in the soap tablet container. Over time the plastic in this container can become brittle and crack. When the machine reaches the time for the soap to be released the container door opens and exposes any cracks to the water. A small solenoid in the door opens the soap door but if water gets through to the solenoid it can cause a short and activate any RCDs or circuit breakers in the house.
It can be fixed but it's a pain. What you need is two pieces of plastic (nylon preferably),large enough to cover the crack, and a good quality glue. Roughen the area around the crack and then glue one piece of plastic over it. Now split the door by removing the internal screws, locate the inside of the tablet box and prepare as above and glue the second piece of plastic over the inside of the crack. If care is taken this repair can last the life of the machine.
WARNING!! MAKE SURE THE MACHINE IS UNPLUGGED FROM THE MAINS BEFORE CARRYING OUT ANY WORK! MAINS VOLTAGES ARE PRESENT INSIDE THE DOOR!

I had the same problem once before. It was only after a few months that we realised it was the dishwasher causing the power cuts. I looked behind the dishwasher to find the back of it had melted. I was renting at the time, so the real estate agent replaced it. Have a look behind yours to see if anything has happened to it.

After that, get some one out to look at it, or replace it.