I've had this Whirlpool 1200 dishwasher for about 6 yrs now.
Every couple years it eats an impeller/chopper and I've gotten pretty
good at tearing it down & replacing the thing.
A couple months ago it started a new problem. Every once in a while
there would be [pretty clean] water standing in the dishwasher at the
end of the cycle. [i leave them in over night- it was there in the
Nothing was leaking so I figured it must be the drain pump- as the
overflow was working somehow. So I got a new pump and all was well
for a while.
Next time there was water standing in it I tried blowing back through
the hose where the drain goes into the disposal. Bubbles came up
in the dishwasher- and it drained when I hit the cancel button.
A couple weeks later it clogged again. This time I thought I'd try to
suck the clog through the pipes. Hooked shop vac to drain at
disposal- tried to suck for a couple minutes. It wouldn't budge. But
I could still blow into that pipe with just a couple pounds pressure
and clear the clog.
Now it is leaking out a little bit during the cycle. Sometimes it
seems to clear itself- as I'll have a puddle, but the drain will be
working by the end of the cycle.
Through all this it seems to be washing the dishes well- glasses and
silverware are rarely spotted.
Any thoughts on where to look?