Bosch dishwasher will not drain - causing moldy odor
Dishwasher is about 7 years old and water has always remained in the in the base - not actually on the floor of the dishwasher but in the lower part where the spinning washer part it. I take a food baster and remove it to prevent odor from sitting water. Can you help?
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Re: Bosch dishwasher will not drain - causing moldy odor
Hello Mimhoff it depends on how much water is down there. The sump area always has a little water in it to prevent the circulation pump seals from sticking. Usually around 1 to 2 inches. If there is more than that, check the slots at the bottom of the sump on the left side for being clogged and check the end of the drain hose to make sure it is clear. If you are getting a moldy/odor from the dishwasher, try running Dishwasher Magic or Tang thru the dishwasher. This will remove any build up of food or detergent from the dishwasher. If you are running the dishwasher every few days and just scraping your dishes, then either leave the door ajar or run the rinse & hold cycle to help keep the odor down. Bosch doesn't reccommend running bleach thru the dishwasher as this can cause damage to the rubber seals. However 2 tablespoons of bleach once a year won't hurt.
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E15 means that water has gotten into the base pan below the dishwasher and it is now in flood mode. You've probably noticed that the drain pump will run all the time now as well. What that means is that water has worked it's way down into the base pan below the dishwasher tub causing the unit to do nothing but drain. This is normally caused by the drain being clogged or too many suds in the tub causing the tub to overflow a bit. Either way, you'll need to uninstall the dishwasher and tip it forward at a 45 degree angle to drain the water out of the base pan. Be sure to put a towel under the dishwasher first so that the water is soaked up in the towel instead of going all over the floor. Once you've drained all the water out of the base pan, reinstall the dishwasher and pour a gallon of water in the dishwasher. If it drains it out right away and doesn't wash or refill, you still have water left in the base pan to try again, otherwise you're good to go.
Now if you don't want to do all this work just to get your dishwasher working again and you have time, let the dishwasher just sit unused for a week and the water in the base pan will evaporate as time goes on and the dishwasher will start working again after a week.
I do not think there is a replaceable filter on this dishwasher - it is supposed to be self cleaning. If you put some bleach in the dishwasher that should knock any smell out of any standing water. If the odor remains, perhaps it is another source? Something behind or under? I once had a terrible odor from the fridge and cleaned the entire thing out with bleach water - still remained. Finally found a dead mouse behind fridge...
this could mean there is water leak and it collects at the base of the dishwasher leading to moisture detection circuit tripping. when you leave it for a few days the water dries up and trip is removed. check door seals for leak most likely at the base of the door. turn power off when working on dishwasher.
Your dishwasher is stuck in flood mode. Bosch dishwashers are built with flood switches located in the bottom base pan of the dishwasher. The flood switch is connected to a rod that activates a small interlock switch. When water enters the base pan on a Bosch dishwasher, a Styrofoam puck lifts the rod, activating the flood switch.
When the flood switch is activated, the dishwasher will go into a no-fill, only-drain mode. The drain motor may also run with the door open to the unit. This is definitely a sign there is water in the base pan. This can be caused by the drain being clogged. There are two ways to fix:
1. You can uninstall the dishwasher and tip it forward to about a 45 degree angle to drain the water out of the base pan. (This is probably why Ian Bint's solution fixed the problem.) Be sure to put a towel under the dishwasher first so that the water is soaked up in the towel instead of going all over the floor. Once you've drained all the water out of the base pan, reinstall the dishwasher and begin a cycle. If it fills and runs, you are good to go.
2. You can also unplug the unit, then remove the kick panel at the bottom in the front. (It's attached with two screws.) Then get some old washcloths or small towels and reach into the base pan below the dishwasher to soak up the water. The pan is directly behind the plastic base panel rim. Once the pan is empty and dry, your dishwasher will no longer be in "flood mode" and will run properly.
If the base pan keeps refilling with water and the no-fill problem returns, there is definitely another issue, such as a clogged drain. At this point, you need to decide whether to invest in an expert evaluation by a certified Bosch repairman and make the necessary repairs, or buy a new dishwasher.
Bosch has a safety float switch under the dishwasher basin. If water leaks into this area, the float rises and turns on the drain pump to clear out the water in the dishwasher. Hope I explained that ok :) Anyways, usually a leak somewhere causes this and unless the leak is fixed and water is removed or evaporates, the dishwasher will remain in the drain cycle.
After you have unloaded the the dishwasher, prop the door open with the upper rack out.
Let the inside air out. After a short time the remaining moisture will evaporate. Stainless steel dishwashers are prone to an odor if you do not use the machine daily. There are after market products that are citrus based that will help. Check with Bosch.