Hi, I am hoping someone can help me fix this drain problem on my dishwasher. It started out not draining all of the water out.
After looking inside I found bits of paper from a label (possibly) from a container. I then took off the lower arm and checked for any debris. Nothing found. So then I took a screwdriver with a star tip and removed the plastic ring with about 10 or so screws. Inside was an impeller of sorts and no debris was found. I replaced the plastic piece and made sure the gasket was in place… It seemed okay. So then I tried it and still it would not drain completely. So then I took off the hose and unscrewed the check valve. I ran water thru it from both sides. It drained good from one side and held water on the other side( the side where the hose attaches). I tried blowing thru the hose and it seemed a little plugged. I then ran a fish tape thru it and blew in it again, this time it seemed okay. SO I attached everything and let it fill a little, and then hit the drain button, and it won’t drain at all. 
So what could be the problem???:mad:
I would appreciate any help on this .
Thanks