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Uncleaned dishes in Frigidaire dishwasher gary 10-27-2007
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Posted by gary on October 27, 2007, 1:05 pm
When my Frigidaire dishwasher (Model FDB636) has gone through all of
the cycles and shuts off, the dishes are not clean and the detergent
is only damp.

I've turned the control knob through each of the cycles. The motor
runs through the various cycles but, in the "fill" cycles, I can
barely hear water entering the tub. (During the "drain" cycles, any
water in the tub is being pumped out).

During the "fill" cycles, when I open the door, I notice water just
trickling into the tub through an opening on the left wall of the tub
(above the Overfill Protector).

Shouldn't that flow be stronger so the water would dissolve the
detergent and get pumped throught the spray arms onto the dishes?

P.S.: The owner's manual shows a "nozzle and upper spray" on the top
of the tub. Should water be pumping through that nozzle, too?


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Posted by frank1492 on October 27, 2007, 1:18 pm
I'd guess you need a new solenoid valve (the electric valve that lets
the water in) or there is a clog there somewhere. In some washers,
the valve stays open for a set period of time so there's no way
for the washer to know if there is enough water in there. Others
have a sensor that detects the water so the valve doesn't shut
off until the level is adequate. You may have the former type.



wrote:

>When my Frigidaire dishwasher (Model FDB636) has gone through all of
>the cycles and shuts off, the dishes are not clean and the detergent
>is only damp.
>
>I've turned the control knob through each of the cycles. The motor
>runs through the various cycles but, in the "fill" cycles, I can
>barely hear water entering the tub. (During the "drain" cycles, any
>water in the tub is being pumped out).
>
>During the "fill" cycles, when I open the door, I notice water just
>trickling into the tub through an opening on the left wall of the tub
>(above the Overfill Protector).
>
>Shouldn't that flow be stronger so the water would dissolve the
>detergent and get pumped throught the spray arms onto the dishes?
>
>P.S.: The owner's manual shows a "nozzle and upper spray" on the top
>of the tub. Should water be pumping through that nozzle, too?


Posted by gary on October 27, 2007, 1:42 pm
Hi Frank,

Please describe the route the water travels through my dishwasher:

1. Does the incoming water first mix with the detergent, then flows
through the self-cleaning filter and gets pumped up into the lower
spray arm?

2. Does some of the water get pumped up through the funnel and into
the middle spray arm?

3. Does any water get pumped though the nozzle at the top of the tub
and out of the upper spray?

Thanks,

Gary


Posted by gary on October 27, 2007, 1:47 pm
Hi Frank,

When you say "new solenoid valve", do you really mean "new water
valve"?


Also, can you describe the route the water travels through my
dishwasher:

1. Does the incoming water first mix with the detergent, then flows
through the self-cleaning filter and gets pumped up into the lower
spray arm?

2. Does some of the water get pumped up through the funnel and into
the middle spray arm?

3. Does any water get pumped though the nozzle at the top of the tub
and out of the upper spray?


Thanks,

Gary


Posted by frank1492 on October 27, 2007, 3:40 pm
Hi Gary-
As I am unfamiliar with your model and the more recent
technologies, I hope I am not misleading you.
The solenoid valve is the "water" valve.
Here's what I think is happening. The water flows into
the tub and the pump then picks it up and sprays it around.
If there is insufficient water getting into the washer, the pump
won't pick up enough (or any.) NOW the pump could be
bad as well. (Didn't mentiion this because you seemed to
think the tub inflow was inadequate.) Under this condition
the dishes won't get clean because the pump doesn't
spray with adequate force. This is quite common.
Sorry, can't describe the way the water routes because
I don't know the model, but at some time all the spray
arms get water.
Hope this helps some. You may need a professional to
further diagnose your problem. But it's either the pump or
the solenoid valve or a clog in a line somewhere.
Frank







wrote:

>Hi Frank,
>
>When you say "new solenoid valve", do you really mean "new water
>valve"?
>
>
>Also, can you describe the route the water travels through my
>dishwasher:
>
>1. Does the incoming water first mix with the detergent, then flows
>through the self-cleaning filter and gets pumped up into the lower
>spray arm?
>
>2. Does some of the water get pumped up through the funnel and into
>the middle spray arm?
>
>3. Does any water get pumped though the nozzle at the top of the tub
>and out of the upper spray?
>
>
> Thanks,
>
> Gary


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