model is the bosch SGE63E05UC dishwasher
its displaying the e24 drain error. i have replaced the drain pump, the new one is much quieter. Note, i have checked for clogs, there are none.


the problem and work around is as follows:

after pressing the start button the drain pump will run a few seconds, then the circulation pump will run a few seconds, and finally the drain pump will run for a minute after which there is the e24 error


however, if during the minute the drain pump is operating, i just quickly open and close the door, the drain pump will stop and the program will progress to the wash cycle (wash cycle light comes on). the dishwasher will function normally.


my best guess is the circuit board or sensor is faulty.


how does the computer determine that there is a drain problem? the drain pump is able to remove all but maybe an inch of water from the sump where the drain pump impeller is. why would just opening and closing the door progress the program to the wash cycle?

what i found out is that the problem is electronic. all the plunging, draining, cleaning will not do anything :mad:.

there are two circuit boards in the dw, after considering that it may be one or both and the cost of then having to get both because they are not returnable, i just went ahead and got a new dishwasher since that is nearly the cost of a new one anyway....:eek:

however, when i installed it, i hardwired in a surge protector, figuring that a voltage spike might have damaged the control board.

If you're getting an E24 error on your Bosch Dishwasher, this works for us - even though we have to do it every time. When you start the cycle, you'll hear the drain pump kick in, after that, you'll hear the pump down shift (like a car), but if you wait 7 or 8 seconds after the pump down shifts at the beginning of the cycle and then open/close the door, the dishwasher finishes the complete cycle.

jeanne951 - thank you, thank you, thank you!

I had tried almost everything, short of having a repairman in. Your ultrasonic toothbrush solution did the trick! Only a little of the drain tube is exposed on my bosch dishwasher, and I just applied the humming toothbrush for about 10 seconds. Wow, you just saved me a ton of dough - I was about to start on the expensive options of repair/replacement.

Haha goodbye frowny face, that made me chuckle...

OK, our Bosch dishwasher has been having repeated E24 errors, too. Believe that I've solved it. Here's what I did:

First, I got under the sink area where the dishwasher water outlet line is coupled to the rubber hose line that leads to the "air-gap" gizmo which is connected to the sewage drain. I then disconnected this connection which was held together with metal hose clamps. (Have a pot ready to catch the residual water in the hoses when you do this.)

Figuring that there might be a blockage in the black rubber hose leading up to the "air gap" gizmo, I then had my wife hold the lower end of the black rubber hose into a big pot while I went to the sink, unscrewed the top cap of the "air gap" gizmo, and used a funnel to pour warm/hot water down into the now exposed central hose of the "air gap" gizmo. Gravity pulls the water down and out of the lower end of the rubber hose into the pot. This flushes out the black rubber hose line of any garbage that may be clogging the line. However, I noted that the water coming out of the lower end of the black rubber hose was just a trickle and the water in the big funnel on the "air gap" gizmo took a long time to drain. This led me to suspect that (1) the E24 error was indeed due to a clogged line and (2) my attempt to clear the line by pouring water into the upper end of the line was not successful.

So to more forcefully flush out the black rubber hose line, I next got a small piece of vinyl hose from my garage to put over the lower end of the black rubber hose so that I could use my lungs to forcefully blow air into the lower end of the black rubber hose and have whatever garbage was clogging up the line come out of the still-exposed top end of the line at the "air gap" gizmo. (I used the piece of vinyl hose so that I wouldn't have to put my lips directly onto the lower end of the black hose). My wife was ready at the upper end of the black rubber hose at the air gap with some paper towels to absorb/deflect the water that would come out. I then gave a BIG blow into the lower end of the black rubber hose. Lots of water and small bits of vegetables and rice came out of the top end of the hose (I underestimated how much water and stuff would come out of the top end of the hose. Make sure that your wife is better prepared than mine.)

Finally, to see if we had been successful at clearing the line, we went back to my using a funnel to pour warm/hot water into the exposed end of the black rubber hose line at the "air gap" gizmo while my wife directed the output of the lower end of the black rubber hose line into a big pot. It worked! The water in the funnel drained amazingly quickly, and my wife noted that the water coming out of the lower end of the black rubber hose was a big, strong stream of water rather than the small trickle of water that we witnessed the first time.

Given the difference in the flow behavior of this dishwasher outlet rubber hose, I'm pretty confident that we've solved the problem, at least until the next time that small bits of food manage to make their way past the dishwasher's filters and clog the water outlet line.

I suggest making sure that the Bosch dishwasher filter is fully locked into place whenever it is put back into the dishwasher. I believe that we were careless about screwing the filter into its fully locked position at least one time and possibly more, and that may have led to the outlet line clog that we had.

Bottom Line: Our dishwasher, at least, was correct in complaining about a clogged outlet line with its E24 error. We clearly had a clogged outlet line but flushing out the line with a big breath and a strong blow into the line was able to clear it. Not so sure about the "electric toothbrush" method that I read in a post above. It might do the trick but then again it might not. I think that the only way to be sure short of entirely replacing a clogged line is to give it a good, strong powerful flush with pressurized air or water.