We have a new Bosch dishwasher. Do we need a siphon on the drain line? Figs 25c & 25d, pg 24 of install manual shows one,

try service manual, manualslib.com may have what you need.

Hi.

E24 is draining error:

Turn off the appliance. Check drain well and filter for blockage. Clean drain. Check drain hose at the back to make sure it is not kinked. Dry water from inside the appliance manually (with power not connected). If that does not fix the problem, then pressure switch in the drain system is usually responsible. The part to be tested are pump, pressure switch and drain lines.

If you need parts or diagrams see this tip explaining how to find parts and diagrams for most appliances: Where do I find parts and diagrams for my appliance?

Regards.

Ginko

You could just need to clean out the sump if the drain pump impeller is jammed. Below is a link to a video you can download that will show you how to repair a Bosch Dishwasher that isn't draining.

http://www.appliancerepairlesson.com/shop/dishwasher-videos/bosch-dishwasher-not-draining/

Good luck

From an internet posting ::

The purpose of the air gap is too prevent back-flow and siphoning, and newer dishwashers (past 20 + years) have back flow preventers built in and looping the drain hose (not a circle, but an upside down u to the top of the cabinet or behind/side of dishwasher) prevents siphoning. Aside form being ugly space wasters the cheap air gaps have a tendency to spit and cough water out.


Read more: What is the purpose of an 'air gap' for dishwashers? ' Answerbag http://www.answerbag.com/q_view/92208#ixzz1ACnxhxz3

Hello and welcome to Fixya.

It "smells" ( just kidding ) like you might have a problem with the way your drain hose is connected by your description.

It is crucial that your Bosch dishwasher have a siphon break or "hi-loop" installed in the drainage between the dishwasher and where it enter's your homes plumbing.

If it does not you can try different cleaners until the cows come home with little effect because the odor is coming from the drain line itself.

Was this unit installed by yourself or someone you know ? Or was it installed by a plumber/professional installer.

In the end it actually makes little difference, I'm just curious. I see professional installers as well as plumbers fail to include this crucial feature over and over.

Let me know. I'll watch for your post. If you are unclear as to what I'm referring to, check your installation guide that comes with all Bosch dishwasher's.

If you do not have any instructions regarding the proper drain/install I can email you a copy, but I would need your email address.

Good luck.

macmarkus :)

Not sure of your light indicator; check the manual. But fyi there should be a little water left in, so the rubber seal doesn't dry out. More than that, and could be clogged drain or bad solenoid, which tells it to open and drain. See: http://www.partselect.com/repair.aspx?appliance=dishwasher&part=water-wont-drain

Try cleaning out the drain line behind the dishwasher, this is a very common problem with draining. If not that then might need a valve or if you have a new garbage disposal you need to punch out a peice of the plastic or it wont drain. Hope this helped, good luck

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.

Good news is, this is unlikely to be expensive.

Need to sort out where it's coming from first.

Find a stopvalve you can use to shut off the water supply to the machine - there's probably one where the dishwasher is connected to the domestic plumbing. If turning this off stops the water coming in, you probably need a new inlet valve. The ones on dishwashers are generally pretty cheap to replace.

If shutting the water off doesn't stop the inflow, then the only place it can be coming from is siphoning back in from the drain. There's supposed to be either an air gap or an anti-siphon valve where the dishwasher's drain hose goes into the domestic drain. If this gets blocked/stuck, then it can cause dirty water to siphon back into the machine. Check and clear as necessary, then run the machine through on the hottest, longest cycle it's got (in the expectation that not all the water that was sucked in from the drain necessarily started out in the dishwasher).

A.

It sounds like your dishwasher does not have an air gap. Newer dishwashers come with an air gap installed, but they can be taken out. A quick fix for this is to:

Check the drain line under the kitchen sink. The drain line is supposed to run from the bottom of the cabinet, and run as high in the cabinet as you can get, (up to the bottom of the counter top) then connect the drain. This is called an air gap, and helps keep a little water in the drain line, which will prevent sewer gases from entering your dishwasher, and garbage disposal.



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