Question about Whirlpool 24 in. GU940SCG Built-in Dishwasher

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Dishes will not come clean. Some areas are cleaner than others, but silverware is always dirty and many dishes have food on them

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There are many probable causes of failure .

A dishwasher's water inlet valve is its most common part to fail. When your dishes are not being fully cleaned, quite often a faulty water inlet valve is to blame. Test your dishwasher's water inlet valve, and if it is no longer functioning as it should, you will have to replace it.

Water temperature is a key element in achieving clean dishes. A dishwasher's heating element is not designed to heat the water that enters it. Rather, the heating element is designed to maintain the heat of the water that enters the dishwasher. Its a good idea to run the hot water in your sink for a couple of minutes before you run the dishwasher. Just to make sure the water is nice and hot before it enters the dishwasher. If the water is unable to stay hot, it can adversely affect your dishwasher's cleaning ability.


There is a filter in your dishwasher. Its function is to keep large particles of food and foreign objects away from the pump. Many of the newly-manufactured dishwashers have self-cleaning filters, and routine cleaning isn't a concern. However, some other dishwashers need to have the filter removed and cleaned regularly. If the filter or grate is clogged or blocked with debris, it may interfere with the normal functioning of your dishwasher

A helpful rating and a testimonial would be greatly appreciated if you are satisfied with my solution..

Posted on Oct 11, 2010

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Posted on Jan 02, 2017

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Is the dishwasher leaving them soapy or dirty with food due to the no rinsing? If the problem is still dirty with food you can try some of the following tips.

Choose a cycle with longer washing time.

Avoid nesting items on top of each other or layering them too close together.
The home water pressure may be too low; it should be between 20-120 psi (pounds per square inch) which should be checked by a plumber.

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Always use fresh detergent, the older the detergent (About one year) the less effective it is at cleaning dishes

Jan 19, 2014 | Frigidaire FTF2140E King-Size ENERGY STAR

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you can but a dishwasher cleaner its a powder that is for breaking down food particles

Oct 28, 2010 | GE Dishwashers

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Seems that food particles are "regurgitating" back up into the dishwasher and leaving grit on dishes - primarily glasses and silverware. Have had dishwasher probably 3 years -maybe less. Don't know what...


That "grit" you are referring to is actually coming from your detergent. It is part of the cleaning enzymes that assist in scrubbing your dishes. If it is ending up on your dishes, you are on the right track. You need to check the main wash pump and clean as necessary to ensure there are no obstructions on the sump area. The drain pump inlet is also in this area and should additionally be checked for debris. If you could please post back with a model number, I may be able to give you further guidance on how to disassemble the spray arm so you can access this area.

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Regular cycle no longer cleans well


Thanks for the clarification (we get a lot of people on here that don't know how to really use a dishwasher).

Sounds to me like the DW may need a through going over.

Confirm the make and model of the DW so I can see how it's built. I am suspect that with all the food particles and film you mention, that the spray heads are clogged in the spray bars, and, check that the drain hose is not kinked, and it's attachment into the garbage disposal is clear. I've had these clog before, limiting the ability of the DW to get rid of the dirty water.

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The dishes don't get clean


Dishes not cleaned properly....
 
  1. Check the water temperature. Should be 125 to 140 F.
  2. Check pump re-circulation., Listen, see if it sounds like it is spraying the water around with enough pressure.
  3. Check water level when the fill cycle has completed. Should be just under the heating element. If not, possibly need to replace the water inlet valve.
  4. Check the spray arm and pump cover for splits or leaks.
  5. Check to make sure dishwasher is draining after each cycle. There should only be a little water in the bottom of the tub.
  6. Make sure the dishes are loaded properly, or dishwasher is not overloaded.
  7. Possibly try a different detergent. Some liquid-gels will bubble and a pump cannot pump bubbles.

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You do not have to take it apart to clean it. You can run it a couple of times with dishwasher tablet and it will self clean. In general I recommend rinsing the food off of the dishes and silverware before placing items into the dishwasher. Also, run the hot water in the sink until it gets hot and then turn on the dishwasher. good luck with it.

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