I did all the above as per j ludbrook, then found a trap box on the back of the machine and carefully removed and dried and emptied it, after all that the machine still tripped the electric so I dried it all out inside the bottom filter area with a hairdryer for half an hour, it is now working, I would never recommend this appliance, I have had trouble since day one and the above "fluff removal" is apparently part of the general maintanance, Hotpoint are not interested once you have bought it, if I were eldery or disabled I would not be able to do that!
mel, February 2012