Brand new bosch dishwater does not get dishes clean - food residu

I found this on ehow I believe it will help. How to Troubleshoot Dishwasher Residue By Dale Yalanovsky eHow Contributor

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Dishwater residue is a fairly common occurrence, and several things can cause it. Even the newest dishwashers may leave residue, and it might have nothing to do with the actual dishwasher function itself. However, there are things you can do to prevent, limit or completely remove dishwasher residue during every washing cycle.

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1. Detergent Residue
   • Modern phosphate-free detergents are the main culprits when it comes to detergent residue. After every wash, many leave a slight whitish residue behind. After several washings, the residue becomes caked on and leaves a noticeable white tint to your dishes. Some dishwasher detergent brands are better than others, and either minimize residue or do not leave any. Once residue is present, however, the only way to remove it is by hand scrubbing or scraping.
   Hard-Water Residue
   • Hard-water residue comes from non-softened water from your hot water tank. Non-softened water leaves a white tint on dishes, but no amount of scrubbing will remove it. Only by wiping a small patch of the dish with vinegar or lemon juice will you be able to ascertain whether the white residue left is hard water or detergent. The slight acidic action of the vinegar or lemon juice removes hard-water stains, but they have no effect on detergent residue.
   Greasy Residue
   • If the dishes feel greasy when they come out of the dishwasher freshly washed, you are dealing with a greasy residue. There are two main reasons for this: either the detergent is not an effective grease remover, or the hot water inside of the dishwasher, either from the hot water tank or the dishwasher's heating elements, is not hot enough. Boosting the hot water temperature on the water tank may solve the problem, and a second wash cycle may be needed for the dishes. A preventive measure of running the dishwasher empty with a full load of detergent also removes the residue inside of the dishwasher.
   Streaking and Spotting Residue
   • If you have spotting or streaking on your dishes, that may be a sign you need a rinse agent. Many modern dishwashers recommend a rinse agent to prevent spotting or streaking, and without one, your dishes will never be crystal clear or streak-free. The next time you do a dishwasher load, add a rinse agent. If the dishes come out spot- and streak-free, the problem is solved.

Read more : http://www.ehow.com/info_12285021_troubleshoot-dishwasher-residue.html

Do you have hard water? Many states have passed laws that outlawed phosphate as an ingredient in dishwasher detergent. If you have hard water, the detergents don't work very well anymore. The residue is probably hard water deposits (calcium and magnesium). Not harmful but it looks awful on your dishes. There are some new products that were designed to solve this exact problem. They are inexpensive and effective. Can't say the name or I'll get banned (again). Internet search will uncover it.

Hi

If you are noticing that the dishes are not clean, then there are a few things to check for. Check the soap powder if it's kept in a dry environment. Also try replacing the powder with something like a gel or liquid. Next thing to check for is the water pressure and fill valve. Check if the water is filling in and the spray arms are throwing the water with enough pressure. Try and listen to the sound if you hear a proper spraying action sound.

If it seems as a low water pressure then check the fill valve. Now, check if dishwasher is draining the water or not. While the dishwasher is working check whether the dishwasher is draining and there is not much left out water after the cycle is complete. Try cleaning the spray arm with a soft brush. The water temperature plays a major role in cleaning of dishes. The temp should be between 125 and 150 F for dishwasher to clean the dishes. Hope this helps...

My best advise is to reduce the amount of detergent to the least amount that you can use, and still get the dishes clean. We do rinse the dishes a bit, as the soft food disposer isn't made to act like a garbage disposer, but rather, to catch incidental food residues. We no longer fill the closed detergent dispenser. We sprinkle about 1/2 of the normal amount (that goes in the open cup) on the inside door and close it up. Our dishes get very clean, with no residue. Also, use a good drying agent as this will help sheet the water off of the dishes. It may take several cycles to see improvements, but you should see improvements nonetheless.
Best regards, --W/D--

Are dishes too greasy!
Check incoming water for free flow
Add correct quantity of soap as per manual. Use dish washer friendly soap. Fill rinse aid liquid in the dispenser meant for it.

Select a different cycle programe and give a try.

Hi,

The scum, film and white residue problems have started since the reduction of phosphates in dishwasher detergents.

Here is a tip that will help you to solve the problem of films, residue, and scum in your dishwasher.

Dishwasher Residue and Film on Dishes

heatman101

I had a similar problem. I cleaned everything that I could (lower screen, etc.) and still had scum. I have hot and softened water and neither fixed it. If your water is not soft or hot, you may be out of luck.
Here is a cheap solution. If it does not work, you are out some vinegar. I started the rinse cycle, once it was full of water, used 1 cup of white vinegar dumped it in the bottom of the washer and ran it through. 20 min. Then ran another rinse cycle to wash it down. Next load came out 5 stars! Just like new. Hope it works.

From Whirlpool:

*Film is due to either etching or silica film. Silica film is a milky, rainbow-colored deposit and etching is a cloudy film. Sometimes there is a water/chemical reaction with certain types of glassware.
o Silica film and etching are permanent and cannot be removed. Both can occur in any automatic dish washing machine and result from a water/chemical reaction with certain types of glassware. They are caused by some combination of:
+Soft or softened water.
+Alkaline washing solution.
+Insufficient rinsing.
+Dishwasher overloading.
+Heat of drying.
+Long/hot cycles.

To slow the down this process:

*Use a minimum amount of detergent but not less than 1 tablespoon per load.
*Use a liquid rinse aid.
*Under load the dishwasher to allow thorough rinsing.
*Do not use heated drying.
*Wash glasses by hand.

Do the following:

1. do you use a rinse agent
2. clean out the drain.
3. if you have a food disposal, run hot water through it and turn it on to clear it out before you turn on the dishwasher. The dishwasher drains into that sink. If you notice food or dirty water backing up into you sink when the dishwasher is draining, then the sink could have a minor clog and is backing up and being re-sprayed onto your dishes.
Source(s):
Use SANIVAC to clean lime deposits and extend the life of your dishwasher. If you have heavy water.

Run your dishwasher empty and pour in a cup of bleach and a cup of white vinegar to get the residue out.....run a regular cycle.......How hot is your hot water tank set on? The hotter the water the better a dishwasher washes and rinses, be careful it's not to hot as your shower and other sinks also will get this hot water......cut your dish soap down and make sure to use a Jet Rinse Aid. Again, be sure to use a liquid soap, and rinse agent, powders will cause a caustic reaction. Hope this helps. Let me know if there is anything else I can help you with.
JimmyC

I would suggest calling whirlpool to have a tech come out and look at it. Your appliance is still under warranty if it is under 1 yr old. It will cover parts and labor.

Although I previously posted with the same problem of a film on the dishes after cleaning, I did find a section in the owner's manual which solved my problem. Lift up the rinse aid cap on the inside door - the factory setting is on "4". The rinse aid works in conjunction with your local water, which has variations in it's hardness or softness. When your dishes are streaky, lower the rinse aid setting to 1 or 2. If your dishes are spotted, raise the rinse aid setting higher.