I bought a new d.washer to replace one that wouldn't work. When I
dissconnected the old one, I found the water line clogged at the
connection. Well the new one was already sitting there so I removed
the old and installed the new. I have had the clogging occure on the
new once in 10 years.
There is a water level float on them to prevent over filling. I have
had that guy stick in the up (turn off water position). It was easy to
loosen and I was told to do a HOT wash every once in a while to prevent
it from happening again. Seems the detergent builds up where it slides
up and down otherwise.