Zanussi dishwasher ZDT 120 11FA - Zanussi Dishwashers

SOURCE: zanussi zdt 6252

I had the same problem with Zanussi ZDT 6252. To fix it, turn power on, close door fully, then open door, turn off then turn back on again. If you follow this sequence the machine is reset and you can select programs again.

SOURCE: just moved in and run the dishwasher

Replace the timer.

Most likely it was broken by someone resetting the timer by hand while the unit was energized.

Always open the door(de-energizes the timer) when you want to make an adjustment to the machine while it's running.

SOURCE: lost manual for zanussi zdt 5052 dish washer

You can get the manual on the link below.

http://dl.owneriq.net/7/71289b21-cfc8-4753-84be-57c46532e8d5.pdf

SOURCE: Zanussi ZDT 6244 Dishwasher , wash cycle completes

Try cleaning all the jet orifices in the rotating vanes. Use tooth brush. Check for dish plate is touching the rotating arm in the wash chamber. Rotate by hand for freeness.