need to test a few things LOGICALLY so
(1)check pipes/filter for blockages CLEAN OUT.
(2)check pump possible filter?CLEAN OUT check pump operation.
After doing 1&2 above machine MIGHT SPIN if not proceed to (3)
the above will only cost you say 1 hrs time
(3)check motor BRUSHES /replace (£10)ish
wirecutterman
January 2008