Hi,
I also have this problem with my dishwasher, I recently replaced the drain pump assembly after it packed in. I was under the impression that once a replacement pump was installed everything would be back to normal.
Despite which dishwasher washing programme i choose, towards the end of that programme the "Quick 50 Deg" LED flashes quickly to indicate a fault and the water is lying and not draining away.
I've checked the drainage hose, connections from the washer to the sink as there is no blockage or restrictions.
The dishwasher worked for about a week after the new pump was installed, but now has this persistant fault.
I have checked the user manual and other website for a possible solution.
Any further comments or assistance would be appreciated.
Graham D, October 2008