Question about LG 24 in. LDF 7811 Stainless Steel Built-in Dishwasher

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UPPER SPRAY ARM FULL OF DIRT - LG 24 in. LDF 7811 Stainless Steel Built-in Dishwasher

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 423 Answers

SOURCE: LG LDS5811WW Low pressure out of spray arms

On the LG LDF xxxx dishwasher family, the Vario feature uses a motor/check valve to switch between "full power" cleaning from _either_ the lower or the upper spray arms, never at the same time. So, not seeing the upper arm spin during the lower arm spinning is standard operating procedure.

But back to your problem. Step one would be to remove the filter assembly again and make certain that there is nothing (debris, broken glass) blocking the white areas where the check valve rotates to switch between upper/lower spray arms. A blockage there ~could~ cause impotent spraying/cleaning.

If there is no blockage and the impeller remains in good shape, suspect a failing wash pump motor. Try to isolate the noise to that motor.

Watch for error codes on the display and report back what you find, OK?

Good Luck!

Posted on May 14, 2009

  • 1 Answer

SOURCE: LG model LDS4821ST.... Top and Upper spray arms arn't rotating.

I have an LG LDF8922ST model with the same exact problem (16 months old as well). I think you are right about the vario spray system. Seems like the repair guys that come out are clueless and get very little assistance from LG customer assistance. I will never buy another LG product again.

Posted on Dec 07, 2010

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1 Answer

Why is the top spray arm not turning


All of the water coming to the upper spray arm comes through the feed tube. If the feed tube is blocked or the probe flapper is hung open, water will not flow properly to the upper spray arm. Be sure that when you push in the upper rack the manifold probe is in position in the feed tube. Try adding more water in the tub to see if the upper spray arm starts rotating. Other possibilities; low water charge, cracked spray arm & poor wash pump performance.

Jul 28, 2016 | Dishwashers

1 Answer

Why doesn't upper spray arm function properly?


A couple of scenarios could cause this problem but the simplest might be the way the dishwasher is loaded. The upper spray arm rotates when water is pumped through the vertical supply tube and into the arm. Make sure that you are not loading the lower rack with items that interfere with the rotation of the upper arm rotor. It might also be a good idea to verify that the feed tube that goes to the spray arm is securely connected to the vertical supply tube.

Dec 02, 2015 | Kenmore Dishwashers

1 Answer

If water comes in and drains out why won't upper arm in dishwasher move?


Hey friend, thank you for your inquiry!
You should remove the spray and clean it out with warm water to assure that no debris or dirt has clogged the arm from functioning. Additionally it could be a problem with the arm being blocked, check for any items nesting on top of one another. I hope this helps to some degree. -Matt

Sep 05, 2014 | Frigidaire Dishwashers

1 Answer

The top shelf is not getting clean. There is food residue on the glassware that was not there at the start of the wash.


Hi,

The most likely answer is that your upper rotor spray arm isn't spinning or spraying water. They aren't powered by a motor - they are driven by water pressure. The most common reason for them not spinning is a blockage somewhere. The lower rotor arm is spraying dirt from the plates in the lower rack onto the glassware and there is no spray from the upper rotor arm to rinse it off.

Check the small spray holes on the top of the upper rotor arm. If they are blocked, use a large pin or a cocktail stick to clean them out. If they aren't blocked, check to see whether the upper rotor arm is spinning by following these steps:

1. Note the exact position of the upper spray arm or spin it so that it is running precisely left to right or front to back
2. Close the door
3. Start any wash cycle
4 After it has finished filling with water and starting cycling the water, open the door and note the position of the upper spray arm again.

If the spray arm is in the exact same position as when you closed the door it's almost definite that it's not spinning. In this event, cancel the wash and do the above test one more time just to eliminate the element of pure chance.

Try the above tests and checks and then post back with the results if you need any further assistance. If posting back, please include the full model number of your Frigidaire dishwasher

Regards,
BElectric.

Dec 14, 2010 | Frigidaire Professional Series 24 in....

1 Answer

Food residue in glass ware after removing from dishwasher


Make sure the upper arm is spraying water as it should. If it is the dirt separator may not be working correctly. It is under the lower arm and separates the dirt while the water is being reused to spray during the cycle. It then gets flushed out when the water is pumped out. Post your model number for more help.

Apr 07, 2010 | Maytag MDB7100AWB Dishwasher

1 Answer

Top rack does not wash dishes.


Possible causes of spray arm inefficiency:
Loading large or tall items in the lower basket which stops the arm revolving.
Upper spray arm split along seam.
Upper spray arm blocked.
Under dosing of powder causing foam and reducing upper spray arm water pressure.
Blocked strainers reducing water to circulating pump, therefore reducing upper spray arm water pressure.
inefficient wash motor impellor (faulty)

Dec 21, 2009 | Kenmore Dishwashers

1 Answer

Dirt left on dishes on top tray; bottom tray washes fine


The broken bottom arm is probably preventing any water / water under pressure to get to the upper arm.
After you replace the lower arm, you should have much better cleaning in the top shelf.
While you are in there replacing the lower arm, recommend you remove the filter under it and clean the filter and any debris you find. Be careful of broken glass!
Good Luck!

Apr 03, 2009 | Dishwashers

2 Answers

Upper sray arm does not turn


Take the bottom spray arm off and take out the screen etc. When these are removed it will expose the volute cover. The volute cover is what the lower spray arm attaches to, there will be a few screws that hold it on, when the screws are removed it will lift off. Under it you will find a check ball, it should move freely, it is most likely stuck in place, if it is free it and clean it and the track it rolls in. re-assemble and it should work. hope this helps

Aug 12, 2008 | Frigidaire 24 in. FDB1050REC Stainless...

3 Answers

Top arm not spinning


only the top rack isnt getting clean?
there is a little plastic circle in the middle of the bottom of the upper spray arm. turn it counter clock wise to pull the upper spray arm from the upper rack. make sure that isnt clogged and the spray holes are not clogged. otherwise....

the piece that the bottem spray arm plugs into and runs along the back wall of the tank to the top is called a feed tube. pull the bottom spray arm out. now you can see the part of the feed tube that feeds the upper spray arm water. does it pop out freely and easily? if so then you need a new feed tube, if not then its most likely your not achieving the right water level or your impeller connected to your circulation pump(motor) is clogged not supplying enough water pressure to travel up the feed tube to spin the upper spray arm.

Jul 13, 2008 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Frigidaire dishwasher dirty & sticks in cycle


First, check the holes on the upper spray arm. They should be clear of food and debris.
Next, There's a check valve (ball) built into the motor unit. Either it's stuck, or the motor isn't pausing at the appropriate time to switch from bottom spray to top spray. You can test the check valve by opening the door momentarily while it's running. The spray noise inside should sound distinctly different. Pausing longer will switch back to the lower spray arm.
If the check valve works, you'll need a new timer.

Mar 10, 2008 | Dishwashers

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