Remove the agitator which is very simple to do, clean that whole area you will find it wll be full of grease body fat etc.
After cleaning under agitator and filter, re-assemble and fill with hot water and detergent (no phosphate preferably) no clothes.
1. Run cycle and check after cycle finished.
2. Try not to always use fabric softener as this causes problem most times (vinegar will soften clothes in final wash) without clogging up machine.
Cressida
April 2009