Bosch dishwasher is not draining all the water at end of cycle. In the bottom of the dishwasher under the mesh trap there is about a cup of water remaining after each cycle.

That normally signifies a leak. Under the machine there is a plastic pan with a sensor in it. However Bosch have a different idea.

https://www.google.com/search?q=Bosch+Series+6+dishwasher+Tap+error+symbol

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Check the "P trap" where the drain hose connects under the sink. It may be partially blocked allowing water to syphon back into the machine or preventing it from pumping properly after the second or third pump out.

Hello. This is a definite issue and somewhat unsanitary so let's get it fixed. Most likely, there is a partial blockage somewhere between the tiny drain pump at the base of the machine and the trap under the sink.

Kill the power to the dishwasher at the electrical panel for the house. Remove the lower front panel of the dishwasher and disconnect the drain line where it connects to the drain pump near the floor. Expect and plan for about three cups of drain water. Disconnect the small pump and visually check it out. If there is debris in there, remove it. If not, keep looking by checking the length of the drain hose and the area under the sink where the drain hose enters the drain and the trap there. J.

Hello Richard, Welcome to Fixya ! You've come to the right place. The problem you're experiencing unfortunately is a common one. The water inlet valve has been an issue with B/S/H built ( this includes bosch, thermador, seimens & gaggenau ) dishwasher's going back to the mid 90's. The part to repair it is available at most brick & mortar appliance part centers or you can check out on-line vendors such as repairclinic, apwagner etc. Do a search for part # 1105846 at repairclinic, you'll see what I'm talikng about. By the way it's about $35. Hope that helps move you forward. Let me know if I can assist you further, or need help on how to change it etc. It's relatively easy with Bosch. Thanks for coming to "fixya" for your inquiries and please take a second to rate this answer according to my helpfulness. Goof luck. Macmarkus :)

Check to see if you have a plugged, kinked, drain hose or screen. Do you know how to disassemble the bottom of the diswasher to get access to the drain hose? Also, is the dishwasher drain and hose properly vented?

I bought a replacement filter and that dramatically cut down on the amount of "specs." Now there are only a few in some of the glasses. I also cleaned out the drain underneath the screen, there were peas and corn in there, I just used a shop vac to **** them out. Seems to be much better now, I think a good inside cleaning of the washer will help out too. Hope this helps...

Hello Ramona Doug,
Try disconnecting power from your dishwasher for a few minutes to clear the memory and then reapply power again. Start a wash cycle without dishes on the hottest water setting and after a few minutes.. pause the wash and add a few cups of white vinegar to the wash water.,. that will help break up deposits in the system.. See if that gets you going properly.
Regards

Try running citric acid (3 tablespoons) through.
You can get it from a drug store.
Or, run 1/2 cup vinegar through.
Do this in both the dish washer and the disposal.
After doing this try running some water into the disposal and then see if the next time you run the dishwasher if it still smells.
You could be having a problem with water not staying in the drain trap under your sink that is why if you run water and fill the trap, then you will find out if it was the dry trap that caused the smell from sewer gases backing up into the house trough the garbage disposal.

Im really not all that familiar with the bosch unit, but a few things i would ck. when you cancel a cycle (it should drain the water) is it humming??? does it sound as if it even trickling into the sink discharge?? do you have a disposer under your sink that this unit drains into, if so remove the clamp and look for possible obstructions right there.Honestly passed this ill have to defer to someone else sorry and good luck

If it is new- then the fishy smell is almost certainly the motor and circuit boards 'cooking' in- most motorized electrical devices have an initial pong. However if it persists after say 10/15 cycles begin to suspect an incipient fault.