Don't know if this is a timer problem or ??
The dishwasher doesn't wait for all the water to be piped in; it starts
prematurely and washes or rinses without enough water, so the top shelf
really doesn't get clean or rinsed because there's not enough water to get
up there. We manually dump in a big bowl of hot water and that works;
however, it's not the most interesting thing to wait around for each and
every cycle listening for the H2O to come on!
Any thoughts on this?
My first guess would be that the water level float valve is either
physically stuck or electrically defective. After some years of use
"crud" (to use the scientific term) builds up between the float and the
post causing it to stop moving. If it sticks in the "down" position you
have a flood because the machine doesn't know the water level has risen.
If it sticks in the "up" position it thinks the water is already up to
the proper level and doesn't add add more.
Make sure you are not using the "China " setting. On my dishwasher,
the "normal wash" and "china" setting were next to each other on the
dial and I sometimes would put it on "china" by accident, which uses
I've seen many dish washers do this, They start running before the tub
is filled. But the filling continues as it is running and gets filled
and shuts off the water while washing or rinsing continues. Yours does
not do this? It just fills the bottom or else it would flow out the door
when you open it. Maybe your pump is clogged or weak or your fill
switch float is waterlogged.
I had this happen on a KitchenAide which did it a lot but not 100% of the
time. Even had a serviceman out who replaced the entire
(electromechanical) timer but it would still do it.
On this machine, unlike, say, a washing machine where everything stops
until the water reaches whatever the desired level is, as long as it takes,
the water fill was simply based on the timer turning the valve on for a
certain number of seconds. I presume there are dishwashers that do
actually sense water level but this one doesn't.
The little float switch only was there to prevent the water from getting
too high (it interrupts current to the fill valve). The timer doesn't halt
and wait for the float to lift or anything like that. You just get so many
seconds of fill valve "on" time and that was that.
I was finally able to catch it acting up and saw that power was going to
the fill valve but water wasn't going in so obviously the valve itself was
the culprit. I pulled the wires from the valve's solenoid coil and found
it open (dead). Turned out that the valve had a thermal fault--after so
many seconds of power on the solenoid would get hot and become electrically
open--turning off the water flow. When it cooled down it would act normal
so it was hard to find.
Fortunately I had saved the fill valve off an older KitchenAide that had
been replaced after 10 years of service when the main seal failed and water
had damaged the motor. The old valve was a little different so after
mounting it and hooking up the hot water copper line I had to get a length
of hose to connect it to the water fill / vacuum break thing on the side of
the machine as the orginal tube was a bit too short to agree with the new
(old) valve. That was a number of years ago and it's been fine ever since.
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