Frigidaire Dishwasher doesn't clean the dishes well

[LEO III]

My Frigidaire Ultraquiet III dosent seem to clean the dishes well anymore (5? years old) The top spinner dosent seem to turn (the bottom does) there is no cloggs or ubstructions in the pump .

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[Dan O.]

Model number?

Frigidaire Ultraquiet III

I'm afraid that is not enough information to identify the appliance in question. What is needed is its exact model number. If you post it we can at least look it up to see what appliance design you're dealing with to try to answer your question.

You can find tips for locating the model and serial number identification tag on your appliances at the following link:

LINK > Model Number Tag Location Guide

dosent seem to clean the dishes well

What is their exact condition after a wash? Food stuffs remaining on items? Grit? Cloudiness?


Dan O.
Appliance411.com
The Appliance Information Site
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[LEO III]

model number

The model number is FDP750RCS0. Dosent seem to get water up to the spinner. The sipnner spins freely by hand

[LEO III]

Also gritty

[Dan O.]

The model number is FDP750RCS0. Dosent seem to get water up to the spinner.

That model uses Frigidaire's Precision Wash® system. On it, one wash arm functions at a time. Here is how it works.

Frigidaire Precision Wash® System

The alternating of the spray arms is achieved with a check ball located on a ramp between two water outlets from the sump. There is an outlet in the center of the sump for the bottom spray arm. Then a second opening for the center spray arm.

The cycle starts with the check ball in the normal position resting at the bottom of the ramp covering the outlet for the upper arm. The outlet is not covered completely by the ball, some water does bypass the ball entering the delivery tube for the upper arm. The majority of the water leaves from the center opening, into the lower spray arm; washing is now into the lower rack.

Spraying From Center

To change the spray to the center, the control pauses the wash motor for not more then .6 of a second. During the pause, water pressure on the back of the check ball decreases, this allows the water located in the delivery tube to reenter the sump. The check ball is moved away from the opening by the returning water and is forced up the ramp. Now the wash pump restarts, this creates water pressure in front of the check ball moving it up into the center outlet stopping the lower spray arm. Check ball moved up ramp.

Water exits out the side outlet leading to the center arm and the upper rack. Water sprayed from the center spray arm sprays both into the upper rack and down onto the lower rack. At the same time, the shower nozzle in top of the tub sprays water down onto the upper rack.

To return spray to the lower spray arm, the pump is paused for 3 seconds. This longer pause allows all of the water to drain back into the sump from the delivery tube and the check ball to fall back down the ramp to recover the side outlet hole. This completes the change cycle. This cycling between the spray arms continues in all wash and rinse cycles.

There may be a problem with the functioning of that 'check ball' inside the pump or a problem in the control not pausing or pausing too long.

There is a service manual available for that design of Frigidaire dishwasher. If interested you can order one at that following link.

LINK > Frigidaire 'Precision Wash' Dishwasher Service Manual (mechanical timer models)


JMO

Dan O.
www.Appliance411.com
The Appliance Information Site
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[LEO III]

Is the ball supposed to be sitting in the sump before the hole to the impellar because there is no ball in the half pipe groove (For lack of a better term) leading into the hole for the impellar.

[Dan O.]

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You can see where the check ball is suppose to be positioned when not in use in the image below. You can see a picture of the actual ball at the following link.

LINK > Frigidaire Dishwasher Check Ball

JFYI

Dan O.
www.Appliance411.com
The Appliance Information Site
=D~~~~~~

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[LEO III]

Have to check in there.Cant see that part just dissappearing. Maby I was opening the door to quick. I need to change the fill solenoid (Takes a while to fill the water is a trickle but does fill) and the discharge pump takes a few seconds to prime(Not like it was when new) Thanx

[Dan O.]

Poor filling?

Takes a while to fill the water is a trickle but does fill

Most North American dishwashers fill for a set length of time only. If it is filling slowly, it is unlikely to be filling adequately. Without enough water (which should usually be up to just below the heater element), the wash system may not function properly.

Check for a filter screen in the water line to the dishwasher water valve which might be partially plugged.

If it is really needed, the correct valve for your model can be seen at the following link.

LINK > Frigidaire FDP750RCS0 Water Fill Valve

the discharge pump takes a few seconds to prime

It shouldn't need to be primed. There is usually water left in the drain pump after a drain unless the drain hose isn't installed properly (see the following link).

LINK > My washer doesn't seem to be able to hold water. What's the problem?

Poor draining could also be due to a clog in the drain lines or pump or a problem with the pump itself.

JMO

Dan O.
Appliance411.com
The Appliance Information Site
=D~~~~~~

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