BEKO WMA765S Not Draining?

Hi
My Berko has just stopped working. When I select any prog to wash it will start but then just stops, it makes a darining sound but then the timer just stops. It will keep trying but gets not further. I have had a look at the filter and it appears to be clean, I think they may be a blockage on the pump that gets rid of the water, is this something I can fix? Many Thanks