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Upper level of dishwasher isn't cleaning, looks like the upper arm isn't spinning, no water delivery, how do fix this?

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  • shermans May 26, 2009

    I double checked the control arm at the top, and it is actually receiving water, but not spinning (the first diagnosis was my husbands, but he was wrong...) Water is dripping from the upper arm holes, but it is not spinning/agitating

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Look at the top back portion inside dishwasher. when you slide that top tray back it connects to the water line to spin the spraying mechanism. ensure that is not stuck or lost rubber boot.

Posted on May 24, 2009

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Posted on Jan 02, 2017

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Neither the upper or lower wash arms spin.


Circulation pump might be faulty. or spray arms are blocked. remove spray arms and clean them and try it again.

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Tablet keeps coming out of the dispenser on my hotpoint fdl 570 dishwasher on all cycles and falls on to the floor, result is that the crockery isn't always clean on the top tray. Machine is still...


Hi Jeanette,

Maybe I misunderstood your question, but the tablet is supposed to come out of the dispenser and fall into the bottom of the dishwasher. It needs to fall into the hot water in the bottom of the washer to dissolve. The dispenser releases the tablet at different points in the cycle depending on which wash cycle is selected. On a shorter cycle it will be released soon after starting. On longer cycles, there is usually a rinse first, so the tablet will be released a little later. There would only be a problem if the tablet wasn't being released, or wasn't dissolving completely.

There are a number of reasons for poor cleaning on the top rack. The most common are the upper spray-arm not spinning, incorrect stacking or overloading. If the upper spray-arm isn't spinning, there may be caused by a blockage in the spray-arm or the water delivery system, but, as the dishwasher is new and it's not happening every time, it's possible that the dishwasher isn't levelled correctly. The spray-arms aren't motorised, they use water pressure to spin, but they wont spin if they aren't balanced, i.e. the dishwasher isn't level.

You can check whether the spray arm/s are spinning by pointing them front-to-back, or left-to-right (so you can remember the position) and allow the dishwasher to run for a few minutes. Then open the door and check the position of the spray arms. They should continue to rotate slowly for a short while after opening the door, but if they're in the same place and static, they're not spinning. I'd suggest repeating this a couple of times to eliminate the possibility of them having stopped in the exact same place you left them.

If the spray arms are spinning, test the dishwasher with only a small load in the top rack. If the top rack comes out clean with a small load, you may be overloading it or stacking it incorrectly some of the time. There should be a correct stacking guide in your user manual.

Hope this helps. If you need further assistance, check whether the arms are spinning then post back.

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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?

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Cleaning the filter was the right thing to try.
Since you don't see cracks/breaks on the spray arm and it appears that it is spinning freely, I doubt that replacing the spray arm will fix your problem.
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There is a screen that you can remove from the sump of the dishwasher to clean. Just twist it to the left and pull it out. I have some tips that you might want to check out if this does not resolve your problem.
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It seems other posts were correct - The upper arm doesn't spin all the time. Once I learned that, and let the dishwasher cycle through, I saw that the upper arm does spin. So, there wasn't a problem with the upper arm afterall. That doesn't solve my crusty dishes problem, but that may have something to do with the soap we're using. We're going to try changing that next.

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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.

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Neither bottom or top arms seem to be rotating during wash cycle and dishs do not come out clean!

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