hi I have a hoover 1300 model AB130 and this morning in the final spin cycle it started making a banging sound as if something is hitting the left hand side of the casing if you are looking at it from the front. I have had a look inside and everything looks secure. It is washing fine just a problem when the spin picks up speed. The suspension arms are not loose and at the left hand side the only thing that could be hitting is either the drum itself or the spring at the side. Any suggestions appreciated. THANKS!!