The unit is barely pulling in any cold water when I set it to wash on a cold/cold cycle, for example. I pulled the unit out today to check the hose connections on the back. I removed the cold water line, made a visual inspection, and did not see any blockage, so I don't believe it's a plumbing problem. I'm thinking the mixer valve in the unit that controls the mix of cold water and hot water might be malfunctioning.