As you probably realise, the nd means not draining.
This could be due to the outlet being blocked somehow, or the drain pump not operating.
Check the outlet hose for kinks etc.
Is the drain pump filter cleaned out.
Does the the drain pump come on when expected.
Does the outlet hose go into a free flowing sink or a suds saver inlet hole in the sink.
Are there any blockages down this end of town?
greg, November 2007