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How to clean the pipes in my dishwasher. It smells like sour milk.

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Use some Clorox and make it a hot wash after you clean the filter and filter compartment.

Posted on Jun 28, 2008

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Dishwasher smells


Cleaning liquid is available from all good outlets,but do check your dishwasher filters and outlet pipe for blockages.

Jan 11, 2015 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Odd odor coming out of dishwasher upon opening it. Smells like rotten milk. What is the best cleaning solution?


After a dishwasher is installed the hose rarely comes to mind - unless a problem occurs and a repair person comes out to inspect the job. If the hose was installed improperly, or if it is lying in a position that does not let it drain, stagnant water will create a bad smell. Examine the hose that is probably inside the kitchen cabinet beneath the sink. If the hose is lying in the bottom of the cabinet, it is probably full of water. A film begins to form inside the hose and the odor begins to grow. The next time the dishwasher is used, the stagnant water ends up on dishes, and in the meantime it can cause a bad smell inside of the dishwasher. Hang the hose at an angle on supports in the back of the cabinet. This alone might get rid of the bad smell inside the dishwasher.

Check the Seal

A dirty dishwasher seal can be a source of a bad smell. Before deciding the dishwasher needs to be replaced, check the seal - especially at the bottom. Old food and grime builds up in these areas and can cause a particularly bad smell. Clean it with a solution of diluted bleach and hot soapy water. One teaspoon of bleach for each quart of water is sufficient to kill germs and the odors they create.

NB I decided to add a little bit of vinegar to the machine after I unloaded it. Sure it would smell pretty strong for a while but then the smell would dissipate. Voila! For two weeks now my dishes have not smelled whatsoever.

Jun 23, 2011 | Maytag MDB6709AW Builtin Dishwasher

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Dishes are wet, dirty, and now the unit smells like sour water because the water does not heat over 85 degrees. i am going crazy with this thing!!!


First perform a vinegar cycle wash in the dishwasher. Pour a cup of vinegar into the bottom of the dishwasher. Keep the temperature at the highest setting possible and perform a wash cycle.Then start using a dishwasher most probably that would solve the problem. If this does not solve the problem then there must be some parts worn out or faulty creating the problem.

There are many probable causes of failure .

To clean the dishes the water temperature is essential.It the water is not hot then the dishes will not be cleaned properly.So check the water temperature.

Also check the filter in your dishwasher.Clean the filter if there is accumulation of debris in the filter

If you are in an hard water zone , then try reducing the amount of detergent used and then try cleaning the dishes.

Jan 05, 2011 | LG 24 in. LDS 5811 Built-in Dishwasher

1 Answer

I have a bad smell must be milk. Can I use bleach


no use tang! a tabel sppon of tang in the dispenser close it then start the dw

Jun 04, 2010 | Bosch 24 in. SHX46A02 / SHX46A06 Built-in...

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The dishwasher is not cleaning properly, glasses look like they have a film on them, plates also do not look clean & the dishwasher has a foul smell.. like rotting food in it.. we use the top quality...


Check the main drain system connected to the dish washer hose pipe. Clean the junction if clogged. This smell might orginate from the pipe.

Check incoming water quality. If hard water is noticed, use softener attachments to the inlet.

Fill dish washer salt in the dispenser. Refer user guide. The salt will help softening the water to certain extent. Finally check whether rinse aid dispenser filled with the rinse aid liquid.

Jun 01, 2010 | Neff 24 in. S5443X2 Built-in Dishwasher

1 Answer

I have Dishwasher FDB520RHBO and it smells like rotten milk/eggs each time we wash dishes. The filter is clean and it is less then one year old. What could be wrong?


Check your main drain system, where you discharge the water.

Remove the machine hose and collect the washed water in a bucket. Check the m/c for smelling. No mell noticed then check the main drain.

Apr 16, 2010 | Dishwashers

1 Answer

This is a very good web site. Thx for pulling it


It is possible the check valve is sticking causing sour water to come back into the washer. The check valve is located where the drain line connects to the back of the dishwasher. Also make sure the drain line is higher than where the line connects to the drain under the sink. Most washing machines have a loop built into the line but it helps it to drain better when the line is higher. Try hooking the line to the top of the cabinet under the sink if possible.

Sep 17, 2009 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

The dishes are wet when the cycle is finished and the dishwasher smells sour. This dishwasher was installed 4 days ago and this has been happeningt since installation.


Call the store that you bought it from and speak to the manager. Have him send a different person out to check this out. Your heated dry button is either not depressed or the heater is out but the foul smell is not acceptable. The best of luck to you!

Aug 14, 2009 | Dishwashers

1 Answer

My dishwasher stinks!


There is food trap of sorts that's part of the soft food disposer. Problem is that food lays down in all the nooks and crannies and festers.

Try this site on YouTube:

http://www.youtube.com/watch?v=JhchaOhpQQo

You probably don't need to go to this guy's extremes (but he's thorough!). You probably just need the part about how to clean the strainer and bottom of the washer. I think this'll help. There are other videos, some selling products (that I haven't used). Also some of the videos are helpful, you'll just need to take a look. Once you've cleaned the goo, you can help it clean with just one cup of white vinegar and hot water occasionally. Also, use the least amount of detergent that you can, and still get your dishes clean.

Best regards, --W/D--

Jul 09, 2009 | LG 24 in. LDS 5811ST Stainless Steel...

1 Answer

Dishwasher smells like fish


There are several possible causes.

First, make sure the machine is properly installed with the drain hose up in a loop or an air gap before going down to the drain. This is to ensure no dirty water or smells from the sour or garbage disposer backs up into the machine.

Sometimes nasty stuff gets trapped inside internal parts of the machine and inside the sprayer arms. It is normally easy to remove the sprayer arms for cleaning, on reasonably modern Bosch machines they can also be opened up for easy access.

There are also special dishwasher cleaning agents that you can use to perform periodic cleaning cycles. Some believe it is important to use rinse agents to minimize the problem, maybe it is worth trying if you don't use it.

If there is warranty left on the machine I would advise you to complain, there is a slight possibility there is something wrong in the machine for instance bad choice of insulation lining that have been known to emit foul smells.

Good luck with tracking down the cause of this!

May 24, 2009 | Bosch Dishwashers

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