My dishwasher trips the electicity suply

The probably cause is a component in the dishwasher is leaking current to earth and tripping out an RCD. Common causes are the heater , pump and circulation pump. Also the wiring which goes into the door is prone to damage and rubbing on the metalwork of the door. You really need a multimeter to check components and isolate the offending component. It is possible to unplug individual parts , carefully insulate the wires , and see if it then trips.

Hi,
I had the same problem. Rather than pay 'an expert' to come round and try and fix it I thought I'd have a look myself first to see if there was anything obvious. After unplugging, safety first, I went to put it on it's side. As I did so water flowed from the bottom.
After cleaning up and taking the bottom panel off I found there was actually an overflow well at the bottom with a trip switch. There's a float which, if this well fills with water, rises and trips the dishwasher. Now I'm not sure if this trip swtich should just trip the dishwasher only and not the whole house ... so maybe there was another issue related to the water in the well touching something else. However, having emptied the well, tidied and dried things up a bit, put things back together ... it worked.

So ... before paying through the nose to get someone to come out and do this ... try it yourself first.

Please note, I'm not an expert, just someone who wanted to see if I could fix my dishwasher on my own. Just take care making sure your dishwasher is disconnected from the power, I mean totally unplugged before taking things apart. Good luck