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My Bosch shx46A05uc dishwasher leaves the top very rack dirty, but cleans the bottom rack fine. There is no clog in the tube to the upper sprayer, as I have removed and cleaned that. Is this a problem with the valve that alternates water from bottom to top rack?? (which I read about online somewhere) If likely, how do I test for this fault, and then how do I replace??? Many thanks! -= Mason

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6 Suggested Answers

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

catriver
  • 878 Answers

SOURCE: dishwasher does not clean properly

sewnice, you might have to dig a little deeper to correct the problem. As long as you can spin the spray arm with your hand and it's not split it should be ok. Your chopper screen might be plugged. You will have to remove the lower spray arm and filter cover. These are torq screws. The accumulator assy. turns to the right to unlock and will lift off. It will take some pressue to snap it off the rear fill tube. Now you will be looking down at the cover that protects the chopper and screen. There is one torq screw holding it down. Remove the screw and lift it off. See if the screen is clogged. If it is, it will prevent the pump from sending water to the upper spray arm in force. Catriver..post back

Posted on Feb 24, 2007

  • 161 Answers

SOURCE: Bosh dishwasher shu3322uc/22

check for leaks where the the top rack plugs into the rear. it might not be sealing. If your unit has the ability to change the top rack height check in the other position and see if it works. In my Samsung (Bosch in disguise) model The tube to the top rack plugs into one of two holes in the rear, depending which rack position I use. Something covers the hole not in use. Bosch uses two seperate pumps for washing and draining. So I don't think the pump could go partially bad. (This happens in other brands when the solenoid gets stuck between pump out and recirculate)

Posted on Jul 03, 2008

SOURCE: Top rack remains dirty

spin the top rotary arm to make sure it spins freely also take it off to see if its blocked (run it under tap) check all other filters too and when you load dishes make sure they do not obstuct top rotary arm if none of this works then it's time for an engineer im affraid good luck

Posted on Jan 27, 2008

SOURCE: Dishes not cleaning particularly on top rack

Thank you, so much, for the update!

Lita

Posted on Jun 18, 2008

  • 161 Answers

SOURCE: upper rack dishes dirty

Is it filling with enough water. Look or if you don't know how much water is supposed to be there , Just add a gallon of hot water to the machine after it fills. If this solves the problem check the filter in the fill valve or replace the valve.

Posted on Jul 05, 2008

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