Dishwasher goes through wash cycle. At the end, water remains in the bottom. Push cancel/drain and hear the pump working but no water draining. Push drain/cancel 3-4 times a day. Hear pump but nothing draining. Then, all of a sudden, days later, push drain/cancel and machine drains perfectly. If I start new wash cycle, get back to the beginning--will not drain and go through the process again. Cleaned out everything, no clogs, it's spotless. Put in a new drain pump. Machine worked for a week but then reverted to not draining. Bought another drain pump but asking if I am missing the real problem Thanks Bill

also, if your drain line is hooked up to a garbage disposal, you need to (carefully) make sure the disposal is clear and run it to make sure it isn't clogged.

Thank you. I don't have an air vent at the top of the sink. Also, I have cleaned out everything and do I ever mean cleaned out. Scrubbed till my fingers were bare, as they say. Every piece of gook anywhere is gone. Tried raising the hose even more. Water emptied out at start of cycle and then poof back to square one. Frustrated. May try having a Scotch