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Dishwasher - Poor cleaning

Over past couple of months stains and food have been left on dishes, cups, plates etc. after the hottest wash, whereas before, these would be removed on the coolest quickest wash. There are no blockages, and there is always enough salt etc in the machine. What's the problem?

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1st: Try testing the temperature of your hot water at the tap it should be about 130 degrees Fahrenheit. if lower turn up water heater
2nd: check preheating on dishwasher, take out bottom rack run dishwasher, after a couple mins open and check the temprature of water in bottom you could fill a cup up. could be bad heating element
3rd: check your spray arms and make sure they are not clogged.

hope that helps.

Posted on Feb 06, 2008

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After dishwashing everything has a film on it.


I often get calls similar to this client: Over the past several weeks-months, have been getting a whitish film/deposit on pots, tops of some plastic cups, etc. You don't really see it on plates.

Typically this is caused when someone switches detergent usually to a liquid gel. It is almost always because we use too much soap.

One of my most appreciated recommendations follows:

My suggestion is to throw the liquid away and use the Cascade Complete or Finish tablets. Place one in the bottom of the dishwasher. Do not put them in the dispenser.

The reason for this is you want the soap (abrasive) at the front end of the cleaning process so that the last little bit of food that is left on the dishes (I'm assuming you are rinsing your dishes) is blasted off and then the dishwasher can "sanitize" the dishes with water that is too hot for you to handle. That is the real purpose of a dishwasher.

Keep in mind that if you rinse your dishes well before placing them in the dishwasher you can probably use the shortest cycle and save quite a bit of money on electricity and water over the course of a year.

Also, take a coffee cup and fill it half way with white vinegar and place it upright in the top rack with your next load of dishes. Do this for the next several loads and then once per month for as long as you own and use a dishwasher.

Sep 12, 2011 | Kenmore Dishwashers

1 Answer

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I often get calls similar to this client: Over the past several weeks-months, have been getting a whitish film/deposit on pots, tops of some plastic cups, etc. You don't really see it on plates.

Typically this is caused when someone switches detergent usually to a liquid gel. It is almost always because we use too much soap.

One of my most appreciated recommendations follows:

My suggestion is to throw the liquid away and use the Cascade Complete or Finish tablets. Place one in the bottom of the dishwasher. Do not put them in the dispenser.

The reason for this is you want the soap (abrasive) at the front end of the cleaning process so that the last little bit of food that is left on the dishes (I'm assuming you are rinsing your dishes) is blasted off and then the dishwasher can "sanitize" the dishes with water that is too hot for you to handle. That is the real purpose of a dishwasher.

Keep in mind that if you rinse your dishes well before placing them in the dishwasher you can probably use the shortest cycle and save quite a bit of money on electricity and water over the course of a year.

Also, take a coffee cup and fill it half way with white vinegar and place it upright in the top rack with your next load of dishes. Do this for the next several loads and then once per month for as long as you own and use a dishwasher.

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1 Scrape and rinse dishes before putting them in your appliance. Small food particles, grease, sauces and bones clog up the system, keeping the dishwasher from properly rinsing your dishes. You don't need to prewash the dishes but be sure to rinse off any solids.
2 Use a toothbrush to clean around the dishwasher door.
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5 Keep space around your dishes. Overloading a dishwasher keeps it from running efficiently, allowing gunk to build up around the drain and the spray arms.
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7 Run the dishwasher with vinegar added to neutralize odor. Empty the dishwasher, place a dishwasher-safe cup filled with white vinegar on the top rack, and run a cycle at the hottest setting. If you prefer, use unsweetened lemonade powder or baking soda in place of vinegar.

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Hi bjw.... clean the dishwasher by putting 2 cups of vinegar into an empty dishwasher and running the longest and hottest cycle.

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