Question about Whirlpool Dishwashers
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Posted on Jan 02, 2017
When the spray arm does not spin and even the powder does get mixed in, your probably have a failing pump/motor.
Before you call for service, try the following. Remove the lower spray arm and filter beneath the spray arm (and as always, check for plugged spray holes and for any broken parts.) Screws will need to be removed to to this.
Rinse everything in the filter, removing anything that does not belong.
With a flash light, inspect the whole sump area, looking for anything that may be blocking water flow. Watch out for broken glass down there!
Look closely at the impeller, looking for damage and that it spins freely and is securely attached.
While you are looking down there, inspect the heating element for damage/being broken/bumpy when it should be smooth.
Reassemble and run a load of those gathering dirty dishes!
The detergent ~should~ dissolve and clean effectively. BUT, if you have recently bought a cheaper, generic dishwasher powder, buy yourself a name brand powder like Electrosol or Cascade and only use it. The cheaper stuff is junk and will rarely clean even in perfectly operating DWs.
If all this does not work, then the pump motor most often the problem and needs to be replaced. When it is being worked on, make sure the heating element is checked. If I were replacing the pump motor, I would also replace heating element at the same time.
Posted on Apr 04, 2009
Have this same problem with my Whirlpool DU1145XTBA. Found out that when you start the unit, it fills with water. If the water does not rise above the filter mesh in the bottom center of the unit then the pump doesn't have enough water to supply pressure to the upper sprayer. Had to replace the Flow Meter. It tells the unit how much water to supply to the unit.
Posted on Aug 15, 2010
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I have an older dishwasher also and recently my wife also complained about it not cleaning right... so me being the man I am tried in vain to clean the things... Bought new spray arms online and installed them in minutes...now the thing works like new... However I have also found that if the heating element goes bad then that also can mess things up bad... So I would buy new spray arms, and also check out the heating element to make sure it is working... Here is a tip that will help you with the online buying...
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