Question about Bosch 24 in. SHU53 Built-in Dishwasher

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Dishes in upper rack have a white deposit on them. Some glassware can be cleaned by hand, but not entirely (as if they are etched). I am using rinse aid and have checked/cleaned the filters. Unit is a Bosch 5300.

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  • 414 Answers

Check your salt container is full and the cap is on securely and there are no cracks in lid. Check the water hardness setting for your supply is correct. Check the rinse aid is full and the rinse aid function is turned on according to the user instructions. Ensure that the items being washed are d/w safe. Check that the holes in the spray arms are not blocked with food, plastic etc. or if you have a deodoriser hanging on the top basket that it is not obstructing the rotation of the spray arm. Try running a d/w cleaner through the machine.
You can remove 165263, see link.(remove t20 screw via the sump after all filters are removeds) this will expose the pump impellor and you can check for any obstruction. If the d/w is connected via a sealed spigot to the sink, remove the grey hose and unscrew the spigot adaptor from the sink and ensure there are no blockages. Some items, particularly glass are best washed on a lower temp cycle and for inproved results use a detergent that incorporates a glass protection component.
https://www.bosch-eshop.com/eshop(bD1lbiZjPTAwOQ==)/bosch/gb/prodp.htm?prod=SHU6802UC%2f12&ESHOPTYPE=S
ps I appreciate the link is not for your model but the part placing should be the same
Hope this helps, please leave feedback or add comment if this helps or you require further assistance.

Posted on Aug 21, 2010

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2 Answers

The dishwasher runs through it's cycle but does not clean the dishes properly and leaves a cloudy film and smears on the inside of the machine and the dishes


    Common Problem
  1. Confirm the wash water is hot
    1. Try heated wash(sani wash) if available
    2. Run hot water in sink to warm up before starting
    3. At least 120 degree Fahrenheit water temperature
  2. Open door check wash arm position start washer for a minute
    1. Confirm wash arm has rotated
    2. Check for plugged spray tips at either end of wash arm.
    3. Use small tweezers to remove
    4. Check for rack and dishes interfering with arm rotation
  3. Place cup in upper rack with opening up cycle washer.
    1. Confirm that cup quickly fills with water
    2. Not washing check water level in tub mim 1 1/2 inch
  4. Discontinue use of rinse/dry liquid additive.
    1. Confirm rinse/dry additive not leaking from dispenser into tub
    2. Washer detergent contains sparkle additive and too much sparkle/rinses/dry additive will coat dishes
    3. Try alternative wash detergent that contains minimal rinse/dry additive and use without liquid rinse/dry additive.
  5. It will take several wash cycles after the elimination of rinse/dry to purge the oily film from dishes and machine..
  6. If success "joy" is achieved with no additives then cautiously add back wash detergent with additives. Additives are important to facilitate drying and protecting the glassware china from leaching. The leaching process permanently etches the surface of glassware leaving a cloudy appearance.

Jan 03, 2016 | Dishwashers

1 Answer

Glasses marked in dishwasher


This is etching caused by your water source and detergent.
Begin using a detergent brand called FINISH or ELECTROSAL
Also use the LEMISHINE product to clean the dishwasher internally.
If you can not find LEMISHINE,start your dishwasher normally and with NO dishes. Once it starts add 2 cups of WHITE vinegar to the wash tub and let the machine run a full cycle.
These steps should produce cleaner dishes and no etching.
It will not remove etching from existing glassware.

May 28, 2011 | Dishwashers

1 Answer

We have a Miele dishwasher that is less than one year old. We have lots of problems with cloudy/etched glassware with every dishwasher load. We are using Cascade soap. In our previous dishwasher (not...


Hi,
There are several causes in dishwashers that make dishes come out with film on them or something of the sort. Here they are.
1 Water temperature should be 140 degrees. Your dishwasher should have a "sani" cycle that heats up the water into that range.
2 Most dishwashers were never engineered for liquid soap. So if you are using it, go to powder soap.
3 A rinse agent is definitely a big plus
4 In some parts of America, such as Florida, lime deposits build up in the machine and accumulate onto the dishes and glasses. It's a white film. It also accumulates in the parts of the machine and clogs them. If this is the case. Run white vinegar in the machine.
Empty the machine.
Turn it on.
While the machine is filling with water, (not at the very very beginning as it will drain out existing water when it is started) put a quart of vinegar in and run it. If it has lime deposits it will greatly reduce them.

5 The spray arms may be jammed with pieces of food or other debris. make sure the holes in the arms are not obstructed.

That should do it.
Best, Mark

Dec 31, 2010 | Miele G892SC SS Dishwasher

1 Answer

Our Maytag MDB9100AWB is 5 years old. Have had repairman out several times. Problem is a light cloudy scum on everything. He has replaced several items, has had us clean parts and fixtures, etc and even...


There are three typical causes of chronic cloudiness on glassware/dishes.
  1. The incoming water may be too hot. Make sure the water is at or below 140 degrees F.
  2. Test to see if cloudiness is removable by hand cleaning or soaking for 5 minutes in white vinegar. If it is removable, it's due to hard water. Use a good quality detergent, and match the amount of detergent used to the water hardness and use a rinse aid. (Some low quality detergents clean poorly and leave a film.)
  3. Glassware may be etched, due to too much detergent, too high water temperature, or pre-washing. Etching is not reversible, so it's important to correct the problem promptly.
Hopefully these hints will help you to home in on the problem.

Dec 27, 2010 | Maytag MDB9100A Dishwasher

1 Answer

10 yr old Kenmore dishwasher was leaking, cycling ok but dishes are not coming out clean. Took about bottom spray unit, found a split plastic round ring about 1.5" dia. Could this be the problem or what...


The ring fits just under the spray arm and the split is normal. When you tore the spray assembly apart, did you clean the screens at the bottom (if white hard-water deposit, soak in 50:50 hot water and white vinegar)? Make sure none of the ports in the deck are plugged with food deposits. Check both spray arms for plugged spray holes or split seams. The upper arm moves from water pressure alone--no motor. Make sure it spins freely by hand. We had to try different detergents to get away from a gritty deposit on glassware. Did you fix the leaking problem? Inspect the gasket seal around the door for damage or hardness and check the latch for holding the door closed firmly. Hope some of this helps!

Oct 17, 2010 | Kenmore Dishwashers

1 Answer

What causes white powdery residue on glassware in the dishwasher. I think it is lime deposits. Can I use lime remover in dishwasher to eliminate the buildup?


If your dishes or glassware appear with a white film or a white powdery residue or spotted following a complete wash cycle, adjusting the amount or type of detergent you?re using and adjusting your hot water heater?s water temperature may solve the problem. But before you do either of these, put a rinse additive (such as Jet-Dry) in the rinse dispenser to improve the sheeting action of the water.

Next, you?ll have to determine whether the film is removable or permanently etched. To do this, soak a glass in undiluted white vinegar for about 15 minutes. Or, wash the glass with warm water and concentrated dishwasher detergent or a high-phosphate detergent (such as Glass Magic).

If the film comes off, it is probably caused by hard water minerals, improper amounts of detergent, or unsuitable water temperature.

Permanent etching is often caused by a combination of soft water and excessive heat or detergent. If glassware is permanently etched, there isn?t anything you can do to make it clear again. But you can avoid future etching by taking these steps:

1) Be sure hot water entering the dishwasher is no hotter than 140 degrees F. Don?t use extra-hot settings such as ?Power Scrub,? and use the ?Energy Saver? dry cycle.

2) Adjust the detergent amount.

3) Don?t pre-rinse your dishes before loading them in the dishwasher. Food particles on the dishes actually help the detergent and drying agents clean better.

A common cause of poor washing results is improper loading?dishes that block or impede the spray arm(s) or prevent the soap dispenser from opening. On the other hand, if your dishwasher has chronic problems with good washing, the problem may not be your dishwasher. A good first step is vary the amount of dishwasher detergent you're using and try switching brands.

Other possibilities: Your home?s water pressure may be too low, your water may be too hard, or the water temperature may not be hot enough.

In order for your dishwasher to fill to the appropriate level, water pressure should be from 20?120 pounds per square inch. If you suspect that your water pressure may be low, turn off all faucets or other users of water (such as washing machines and sprinklers) and then put a half-gallon jug under the kitchen faucet. Turn on the hot water full-blast. If the jug doesn?t fill within 14 seconds, your water pressure may be too low for proper dishwasher operation. Call your city water utility to discuss your options, or avoid drawing water elsewhere in the house or yard during dishwasher cycles.

The right amount of detergent to use depends on how large your load of dishes is and how hard your water is. Hardness is measured in grains of minerals?the more grains per gallon you have, the more detergent you?ll need. If your water has 12 grains or more of hardness, fill both dishwasher soap cups completely with detergent. If that doesn?t work, consider installing a water softener. (For more information, see the article Water Softener Systems.

To check water temperature, hold a meat thermometer under the hot water faucet for two minutes; if it doesn?t register a minimum of 140 degrees F., turn up the temperature dial on your hot water heater. (However, if you have a newer dishwasher that heats the water internally, it isn?t necessary to turn up your hot water heater.)

If your dishwasher has worked fine in the past but suddenly your dishes aren?t clean after the dishwasher completes all cycles, listen to the spray arm(s) spinning inside during the wash cycle. If spinning poorly, wait for the machine to cool down, remove the spray arm(s) by unscrewing the hubcap(s), lifting the arm(s) off, and then cleaning out the spray holes in the spray arm(s) with a stiff piece of wire.

Sep 03, 2010 | Hotpoint Dishwashers

1 Answer

My electrolux icon dishwasher leaves food residue in the interior of glassware and mugs. It has etched and left milky scratching permanent texture to all glassware. I have replaced glassware change...


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

Mar 10, 2010 | Electrolux EIFLW55HIW Front Load Washer...

2 Answers

My dishes come out with cloudy film on them.


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



Sep 30, 2009 | Bosch Dishwashers

3 Answers

I have a GE, PDW8600 Series, problem is - no matter how I arrange dishes the top rack always has deposits left on dishes that are on the top rack. The water is plenty hot.


If your dishes or glassware appear filmy or spotted following a complete wash cycle, adjusting the amount or type of detergent you're using and adjusting your hot water heater's water temperature may solve the problem. But before you do either of these, put a rinse additive (such as Jet-Dry) in the rinse dispenser to improve the sheeting action of the water.
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First you'll have to determine whether the film is removable or permanently etched. To do this, soak a glass in undiluted white vinegar for about 15 minutes. Or, you can wash the glass with warm water and concentrated dishwasher detergent or use a high-phosphate detergent (such as Glass Magic) according to label directions.
If film comes off, it is probably caused by hard water minerals, improper amounts of detergent, or unsuitable water temperature. For more, see "Dishwasher Doesn't Wash Well."

Permanent etching is often caused by a combination of soft water and excessive heat or detergent. If glassware is permanently etched, there isn't anything you can do to make it clear again. But you can avoid future etching by taking these steps:
1) Be sure hot water entering the dishwasher is no hotter than 140 degrees F. Don't use extra-hot settings, such as "Power Scrub," and use the "Energy Saver" dry cycle.
2) Adjust detergent amount.
3) Don't pre-rinse your dishes before loading them in the dishwasher. Food particles on the dishes actually help the detergent and drying agents clean better.
More about dishwasher problems & repairs:

Apr 20, 2009 | GE Profile PDW8600J Built-in Dishwasher

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