Indesit WM12X dial keeps turning?

Please help! My 3 year old indesit WM12X will go through a cycle to a certain point then the dial will constantly turn and will not finish the programme. I have checked and cleaned the filter a number of times but this does not seem to do the trick. I have tried resetting it by switching off for a while and turning the dial to end programme spot then to rinse to finish the programme but this also fails. My husband also thinks it is not emptying the water from the wash and therfore will not go to next part of programme. Any advice gratefully received!