Bosch SPI 50E35EU Dishwasher: Smelly Dishes & Unpleasant Air - Help with Persistent Issues

I am asking for help with the problem I am struggling with, namely - the bad smell after washing in the Bosch SPI 50E35EU dishwasher. I have had this problem for two years and neither I nor the called service technician dealt with it. The dishes after washing, as well as the air inside the dishwasher after washing, have a smell, if I had to compare it - it is to the unwashed vessel standing for several hours left by the eaten rooster. As if it does not sound, unfortunately it is a very unpleasant smell for us, and eating from such odorous dishes causes gag reflexes. After washing, we usually have an additional rinse of dishes. Why usually, because once every 3-4 washes you do not feel anything after washing. It is a small dishwasher, in which the dishes do not stand without washing for more than 24 hours, they go there rinsed before being put in. I am a seller of computer electronics, so I know how important it is for users to follow the instructions in the included instructions and this was the case with my dishwasher assembly. In the fight against the problem, I used various types of washing products in bars, powders, fragrances and odors without any effect. I also use regular washing recommended by a service technician with special agents, but it doesn't help. The sprinkler blades are not blocked by the dishes during washing, the seals are pulled out and washed together with the surface of the dishwasher, and there is a stench under them. The filter is cleaned every 2 weeks (almost nothing is in it), the water next to the filter does not have unpleasant odors. I wonder where this smell comes from then. Is it possible that something inside the dishwasher reacts to the water during washing or to the air during drying, causing an undesirable effect? After washing, smelling each item separately, it smells no more of any than the air inside the dishwasher, to be able to tell that this is the problem. If anyone has any other suggestions that I could put into action to get rid of the stench, I will be grateful for the hints and I will report on the attempts made.

Do you use dishwasher salt?
There are such symptoms without salt.

I add salt.

Maybe you have water from a deep well with a lot of hydrogen sulfide and then we smell like rotten eggs.

I have a very similar dishwasher. From the news, I was disturbed by the smell after washing. It might not be the kind of smell you smell like yours, but it was quite nasty.
I have tried and used constantly:
- removing food residues from dishes (rinsing).
- the use of anti-odor pendants (several permanently).
- after the cycle is over, I open the dishwasher and slide out the shelves to dry / cool the dishes.
- after washing in the evening, leave the dishwasher open overnight to dry / air out.

Recently, I have noticed that for overnight drying, it is enough to open the flap by about 20 cm and support it with a special tilting bracket screwed from the bottom to the top (as in the photo).
20180427_2..844.jpg Download (271.67 kB)

Maybe a problem with the siphon in the dishwasher? In general, unlikely, because there is probably water in the drain hose. However, it does not hurt to try and disconnect the hose from the sewage system. Another possibility is that a colony of bacteria has emerged. Maybe it will help to buy potassium permanganate at a pharmacy and add the solution during the washdown.

yanes wrote:

Maybe you have water from a deep well with a lot of hydrogen sulfide and then we smell like rotten eggs.

I have no city water.

mojepetro wrote:

Recently I have noticed that for night drying it is enough to open the flap by about 20 cm and support it with a special tilting support

I also open the dishwasher and play on time with the smell. Sometimes it helps, but sometimes the stench is so bad that it comes out of the dishes during meals. This, however, is only a struggle with the effect, but I care about eliminating the cause.

Borutka wrote:

Another possibility is that a colony of bacteria has emerged. Maybe it will help to buy potassium permanganate at a pharmacy and add the solution during the washdown.

I haven't checked it yet and haven't tried it. Thanks for the hint. I will work in this direction. We will see. I will let you know what the final is around Wednesday, because tomorrow I will have 11 hours three days at work.

I give + for Borutka with a drain there may be 2 special cases, the drain hose connected too low, which means that there is no sufficient amount of water to remain in the hose, creating a siphon "clogging" the clearance to the riser.
The second option is the so-called gas backwater in the drainage pipe. If there are other installations in the apartments above the drain connection to the riser, the sewage poured in them with a large stream creates air pressure under it, which, at lower siphons with too little water creating resistance, slightly escapes to the device. If it is a kitchen riser, it stinks, but when such a weak siphon is connected to the toilet riser, a package flying from above in a ?100 pipe is wrapped with toilet paper and poured with water to slip (sometimes from the 12th floor) with cosmic speed I, it will seal the riser like tow in the cannon, the result is the column of gases is large enough that smelly farts are released through the shells on the lower floors, especially on the ground floor. The use of pneumothorax is against this.
Phew ... I'm going to the site

Hello !
Unfortunately, I have a similar smell problem with a small Bosch "built-in" dishwasher.
It is connected in a house without such a sophisticated drainage system.
The drain pipe is connected as instructed in the area of the kitchen sink drain siphon. Unfortunately, the stench is and has been from the very beginning and no one knows why.
For the sake of simplicity, I will add that the previous old, well-worn Aristona dishwasher did not freeze the dishes and the apartment, and after washing, the removed dishes were clean and dry! I emphasize - dry !! Unfortunately, the new bosch cannot do that. If the door is not left open after washing, the dishes will be wet and with stains. Maybe it's just his beauty.
best regards
AM

Dishes should be dry after the 70 ° C session, provided you have completely drained off water, which sometimes remains above the dishwasher floor. If this is the case, turn on the dishwasher for a moment, the residue will be pumped out and the hot dishes will dry. The dishwasher's drain hose should be installed in the upper (inlet) part of the siphon just below the sink drain.

Remove the door gaskets and check that there is no muck inside the gaskets. I don't know what the gaskets of this model are, but the others have P-shaped gaskets. There is muck inside and must be thoroughly cleaned. It would be worth unscrewing the door, maybe something has started to live inside.

I have a Siemens and a similar problem (of course, the reasons may be different, but if it is such an inorganic, "chemical" stench, the cause is probably the same). Odorek was once weaker, sometimes it was difficult to withstand the open dishwasher and the dishes had to be rinsed. Airing the dishes and the dishwasher did not help. The dishwasher is well-kept, works and cleans flawlessly, I put the dishes in rinsed, and I have had a problem for many years (although it seems to me not from the beginning, and the dishwasher is already 11 years old). Recently, I found the culprit. The guilty ones are the tablets (I use finish or Somatu, once I used foil wrapped ones, I have been buying them in paper for a long time), it is probably about something in their composition, which, despite the thorough pumping of water, remains somewhere deep inside the device. The case seemed to be a coincidence, I buy myself in a German chemistry store and over a month ago I found the Finish dishwasher gel there for the first time. I bought it and from the first use until now, the stench from the dishwasher has completely and indisputably disappeared! You will say - beautiful, we buy a gel and the problem is over. Unfortunately, the gel also has a serious disadvantage (maybe my old dishwasher is not fully adapted to work with the gel) - it does not wash well. Ie. It deals very well with fat, but it does not cope with intense deposits such as after strong tea or juices (the real ones, squeezed at home, e.g. beetroot, carrot or red cabbage), so unfortunately it is not a dream detergent. I tried adding baking soda to the bottom of the dishwasher, which I often use at home, also for washing and scrubbing in the kitchen, but it did not help. For now, I am washing these dishes by hand, which I know that I would take them out if they were not washed and I enjoy the lack of olfactory sensations, but I will not be able to do it for a long time

Enter the menu and increase the salt content in the wash. In Siemens / Bosch there are seven degrees of "salinity" in water. The tablets contain salt that the gel does not have.

I've determined that the smell is not the dishwasher's fault. I don't know why, but there is some reaction between water and air when the window is open. The stinky smell of the dishes appears only when and no matter what dishwasher cleaners I use and how much salt. Same with washing floors. If the windows are closed everything is OK, no unpleasant odors. If only when washing or a moment after washing the floors I open the windows, the smell resembling a rotten egg immediately appears in the house. Fresh water for washing, mop washed before washing and regularly rinsed when washing floors. I also used different floor cleaners.
If anyone has a clue about chemistry and knows what is responsible for the reaction causing this smell, please let me know.

@toman1toman

Probably a multi-story building, dishwasher connected to the drain, there is no slight difference in air pressure between the drain pipe and the sealed room, only opening the windows causes gas backflow. A siphon will help or raise the drain hose, in which some undrained water must remain.

The stench from the sewer is quite specific: from rotten eggs to ammonia. Sometimes it drips that the dishwasher is such a wet dog. The phenomenon, it turns out, also occurs in another, familiar household. So different pieces, different location, different city. Couldn't fight it.

You can put a cut lemon or zest in the dishwasher and replace it every few washes. In addition to the fact that it eliminates the unpleasant odor, it works as a rinse aid.

After all, this can be tested in a fairly simple way.
Dishwasher old or new, do not use anything and let it go without any detergents (salt, rinse aid, tablets). If you put in clean dishes with no odor and after washing with water alone, such as the ECO program, they still have the smell on the dishes, then you are looking for a topic related to the backing up of, for example, impurities or sucking gases from the drain, etc.. However, if after washing they are odorless, then we start to turn on the means, but sequentially and test.

I have an interesting experience precisely with dishwasher salt, when I used it (Somat or Finish), there was always after each wash slightly or more noticeable this doggy smell - rather disturbing on all dishes (glasses, cups, plates). After many years I used no salt and it is completely different, no smell on the dishes, whether wet or dry, using only tablets such as Finish. There are many possibilities, but sometimes only one causes it, e.g. water, detergent, salt, rinse aid, filters, drain, seals, impurities. Chemical reactions with running food e.g. bacteria as from milk or eggs, and more and more I am puzzled by the resin in the water treatment tank where salt is poured in. On a side note - I came across an article that says that in the process of treating ion exchange resin with salt or cathode resin, a fishy smell is produced.