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Thanks all, I can't remember where I bought it. Funnily enough we had to have the cooker fixed last year and the chap that came saw the washing machine and said "we never, ever get a call out for these". I must be unlucky.
I feel I should call the chap back that came last week, he obviously took the easy option of blocked pipes when the problem was far more technical, but the problem is whether he'll be able to fix the thing or not.
I 'll have to have a think, I don't want to throw good money after bad though.
Thanks again, especially Buildersmate, I'll check that link, OH thinks we should still complain to Miele as the machine should last longer than 8 years given the cost of it.