Hi Geoff, thanks for all that info.
What your likley issue is the drain line going to the sink pipe or the drain or trap.
If all that is clear, and running free, then you will need a drain pump, (not very expensive) and easy to replace in that model;-)
The best place to get that pump is: http://www.espares.co.uk/
I would call them to place the order if you end up needing that, also make sure the pump is clear inside and not clogged.
If you do need the drain pump please call, Espares: 0844 9777 888 .
I will help you if you need more assistance when you have the pump no further cost for any of that help;-)
In any case, I will stick with you until this is complete.
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