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Little water pressure in bottom arm - no water

Little water pressure in bottom - arm hardly turning - no water passing through top arm at all

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There's a bunch of gunk in the pump that needs to be cleaned out. It's not that easy to get to, so you might want to hire a certified professional to clean it out.

If the technician tells you that you need a new pump, tell him to stop being lazy and clean the darn thing. It will only take him 15 minutes max. Good luck to you :)

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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Kenmore top arm not spinning


sprayers might be plugged. do u have hard water?

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Dishwasher not cleaning dishes; water not coming out of top spray arm


You are right to go to the inlet filters. If they are clogged you would lose pressure, but not that much...The pressure pump is probably not outputting any longer. Locate it and see if it is moving freely.

Jan 14, 2013 | Dishwashers

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Kitchenaid dishwasher KUDP01IL upper spray arm not spinning although water supply appears to be adequate (water sprays from jets but the arm remains stationary).


Just had the same problem, and fixed it. Spray arms turn with proper water pressure in the pipes. 3 reasons can lower the water pressure. 1-pump motor losing power (wasn't my case) 2- cracked pipe (wasn't my case either, pipes, although plastics, seem to be very solid) and 3- debris in the pipes/filters. (It was my case) At first, it looks difficult to reach de filters, but it isn't.
1- Remove both baskets, the top one by removing the front plastic cap on the rails.
2- Remove the "+" bottom spray arm, by unscrewing counterclockwise (if I remember well...) the plastic screw dead center of it (use your fingers.)
3- Remove the three screws you see, but don't try to remove the filter part right away because there is a 4th screw under the leading water pipe, the one leading water to the top spray arms.
4-To remove the 4th screw, you must remove the plastic pipe that connect with the top spray arms. Easy. It's beeing held there by two clips, one on the back wall and one on the top wall. Just spread them with your fingers (or screwdriver) and turn the pipe toward the right side, to free the bottom part of the pipe from the middle/bottom spray arm holder, you'll have to bent it a little so it passes over the heating element.
5- Remove the last screw. Now there's nothing holding the bottom part anymore. just remove by moving it back and forth left and right (to loose it up), be carefull not to lose the clear plastic washers on the main shaft when removing. Now if your dishwasher is like mine (should be) you should see a lot of debris that couldn't reach the chopping device. In fact, the water couldn't flow properly because of all the debris stocked there by the bottom drain filter. Patio screws (?) small chicken bones, etc...
6- If you can find something to pump the water resting at bottom there, (I used a Prestone coolant tester!) you'd have a better view, and could remove the single screw holding the chopping device cap in place. That's the last step. Notice that the chopping device cap, even after the screw is removed, still look like firmly attached, like "glued", but there's absolutely nothing else holding the cap. Just shake it with your hand and it will eventually come off. Now you remove all the dirt/debris you see there, and then follow thw step back the rebuild the washing machine. On my part, it brought it back like if it was brand new..., but, now I'm being a little more carefull about the stuff I'm putting in there...
I hope it can help, English is not my first language.
Good luck
Daniel
Montreal, Canada

Dec 15, 2010 | KitchenAid 24 in. KUDP01IL Stainless Steel...

1 Answer

Top wash arm does NOT spin, but is not blocked or hard to move by hand. Does this run off water pressure? Whatshould Itry next. I have already removed the filters and cleraned around the pump. The bottom...


Remove the dishwasher from the cabinet and look at the hose going up to the top. Make sure it isn't clogged and that there is nothing in the port where it comes out of the pump. The top arm is powered by water pressure from the pump.

Jun 14, 2010 | Frigidaire 24 in. FDB750RCC Stainless...

1 Answer

Spray arms do not turn. water to them but not


I had the same problem and fixed it by disassembling the lower spray arm and return filter, and cleaning all the junk out.
Most dishwashers have 'risers' that bring the water up to the top sprayer or arm located under the top rack. If the recirculating pump is plugged even a little there won't be enough volume or pressure to get the water up there.
Test this by putting a dry muffin pan in the top rack, flat, and running the dishwasher for a bit. If there is no water on the top (or the bottom) either the top sprayer or the sprayer arm underneath the top rack is not getting enough volume.
To fix this you need to clean out the screen and filter, where the water returns to be recirculated. If you don't have any confidence to remove the parts and clean it out yourself, get an appliance repair person to do the job.

Aug 23, 2009 | Bosch 24 in. SGS43C12 Classixx...

1 Answer

Clean on bottom rack but dirty on top


Clean the filter at the bottom of the tub. If it is dirty or clogged the water pressure may not be strong enough to spin the top arm. Make sure also the there is nothing blocking the holes of the spinner arm. If the filter and arm are clear then the pump may be failing.

Aug 13, 2009 | Whirlpool 24 in. DU1100XTP Built-in...

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

Top rack arm doesn't spin.


matt, did you get down to the chopper screen? If that screen is clogged the flow to the upper arm will be restricted. Check out the pic, Catriver

Sep 29, 2007 | Kenmore 24 in. 17362 / 17364 / 17369...

1 Answer

Small plastic top and mid spray arm do not turn, bottom does


decrete, you want to get down to the chopper and screen. If the screen is plugged up with gunk there won't be enough pressure to reach the top spray arms. Check out the posted pics. Remove the lower spray arm. Rotate the rear feed arm to the right until it unsnaps from the tube going up the back. See the 4 torq screws holding the filter on. Remove them. Lift the filter up. Now you will see the chopper inlet cover. 1 torq screw holding it in. Lift it up and there's the chopper and screen. Catriver..post back

Apr 09, 2007 | Whirlpool GU2400XTPS Built-in Dishwasher

1 Answer

I replaced the spray arm seal, but the arm still wont spin. I get water but not enough pressure to turn the top arm. The bottom arm works fine. Should the top arm turn easily when pushed by hand. It...


arms should turn freely. spray arms are only rotated by water spraying out from angled jets at end. check for blockage in spray arms - sweet corn and rice are the worst offenders. take spray arms off and run water in centre hole and see it runs out of all the jets freely

Apr 08, 2007 | Whirlpool GU2400XTPS Built-in Dishwasher

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