Paul's advice from June 07:
(if the machine is still full, move the waste pipe lower than the drum into a bucket or pan this will empty th water and the door should release. then unscrew the filter from the front right of the machine, mine was difficult to unscrew as it had a small drill in from my overalls and this made it difficult to unscrew, however after much wiggling it came off and i could remove the drill, then it worked fine. make sure you try this first as its a 40 quid fee if the engineer does it)
...worked a treat. Emptied the drum by lowering the outlet pipe, then unscrewed filter underneath plastic cover, then removed offending blockage, put all back together, and it works nicely again!
Thanks, saved me £40 too :-)
JH, July 2011