I have a full load of stinky dishes but the dishwasher won't fill with water. A couple days ago my drain was very slowly draining and the dishwasher got backed up (water everywhere). I unclogged the drain and got the dishwasher to drain but now when I turn it on everything seems fine (lights on and noise) but then it makes an awful sound about 3 mins into it, I open it and there is no water. It is 3 years old.