Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
you need to clean the sump assembly. behind the spray arm take part # XXXXX on this diagram off and down inside you need to clean it out, there is a screen down in there and also a chopper blade, be careful there could be broken glass also. then take glisten and run it through 2-3 times. heres the diagram, you can get this @ most grocery stores, this should take care of it. thanks Bryan