This would indicate a leak into the base has activated the anti flood device.
Unplug the appliance, tip it rearward about 45 degrees to drain the water out of the base.
Once drained the anti flood device should reset.
Try the appliance again.
If it fails during the first wash, take the panels off to watch the machine working and to locate the source of the leak.
Hope this helps
Let me know how it goes or if you need more help
Thanks
Read more: http://www.justanswer.com/questions/2te0r-hotpoint-dc-28-dishwasher-start#ixzz0ZZuSWgPQ
paul cresswell, December 2009