Belling Dishwasher IDW604 not working?

Hi, refixed the metal door catch & it will not run.
Checked the filter & water pressure & thats all OK.
On switch on all the lights come on and you can select a programme. Close the door & after 10 secounds it drains the water away. Afetr that it trickles some water in to fill the drain sump and then it stops. Thats all its doing. Anyone any ideas?

Mikey
January 2012