It appears you have a partal blockage.Located behind the front kick panel is a filter inspection cover.Remove the cap and the filter.Clean out any debris.Make sure nothing is stopping the pumps impeller from turning.Put the machine on SPIN ONLY and look into the filter housing.The pump must be running.If all ok,reassemble and try.If it doesn't solve the problem,you will have to remove and inspect the blk rubber hose between the drum and pump and inspect for a blockage.If you have small children have you lost a sock?.
paul, January 2012