Hi all!
I've solved this problem with a little help of a serviceman (who admited he was seeng this model for the first time :)
The cause was a broken wire whih comes along with other wires from the electronic part of a dishwasher placed in a door of it, to the bottom containing all pumps and valves.
This wire was broken because of bad design causing it to be bent on the sharp edge of a plastic cover, during opening a door.
I hope it helps someone to cope with another similar problems.
BTW I never thought, this class of machine (it costed almost 1000$) could have this kind of bad design.
If someone wants to ask me for more info, please feel free to write on deep_space@op.pl
Tom
January 2006