That happens Mickey191! Way back when I ived in England we had a dishwasher that did a real good job of washing the floor. Three out of four times it would flood.
Well the guy came by three times and couldn't fix it. I got really fed up and took the top off myself - Right there was a little adjuster labelled 'water level' with a plus and minus sign on it. I gave it a quarter turn towards the minus and we never had any more problems with it.