dishwasher pump runs continuously
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- Опубликовано: 12 авг 2011
- Recently I got a failure in my Bosch dishwasher.
The dishwasher pump runs continuously despite there's no water in the machine and even when I opened the door. My father ìn law knew what the problem was and he fixed it.
Someone sent me the following link to a service training manual:
www.cteq.ca/Doc_texte/Dishwash...
For those who want to do a thorough cleaning job, see reply of cvandoren1 below! 
Хобби
If only all tutorials on dishwashers were as clear as this one!
My Neff dishwasher pump was running continuously. I cleaned the red float with hot vinegar and jiggled it about to release the gunk. Worked great. Might do a hot wash occasionally to try and stop the buildup. Thanks for taking the time to do the video.
It worked! Our float chamber was so clogged I ended up very carefully unclipping and disassembling that section to clean it but it didn't take too long. Would never have worked it out or attempted to fix it myself without your very useful video. Thanks for posting.
Thank you for this video! I have a Siemens dishwasher, but your instructions worked perfectly, as all the parts looked the same and were located in the same places. You saved me €500! In my dishwasher, there was no dirt in the red float compartment, it was just stuck in the up-position. I gently pushed it down, tried to start the machine, and now everything works like normal again.
Really impressed with this tutorial, very easy to follow and nothing unnecessary included - Brilliant!
Thanks, for the video, I cleaned the float thoroughly by taking the whole part and putting it in the sink. Watching the water enter through the pipes and the float not operating is great and nice and clean! Though my dishwasher still will not pump out.
Excellent instructions. I have a Bosch that would have the pump run despite no water. I thought it may have been because the supply solenoid would not allow water in. I took the old solenoid out and noticed it had been leaking and assumed the problem was the solenoid valve. I replaced the solenoid valve, but it didn't fix the problem with the pump running. I saw your post on the float switches and sure enough, the drip pan was full of water. Drained the pan and the dishwasher started working. Thanks again for the posting. Don
Thanks for the video, our dishwasher hasn't been cleaning well, I suspected a lack of water, thanks to your video I worked out how it worked to then find what needed cleaning. I watched the anti flood float raising constantly and then draining, all it needed was a good clean.
Thank you. Saved me a lot of money. Mine was dirty float, I disassembled it, pulled out the float cup, flushed out the gunk, scrubbed it all with a toothbrush, reassembled and boom - fixed! Thank you again!
Thank you, Thank you. I have the Bosh Millennium Series and it has been a great machine. This is the first problem I have had and this fix was it. You saved me from having to buy a new machine. A good cleaning to the parts you said and she is up and running again. Wife is very happy. :-)
Thank you very much indeed for posting this youtube video. We had exactly this problem and resolved it by cleaning the float and the float housing which had got quite clogged up. Like Toby Griffiths, we actually managed to remove the float housing itself which was just a case of disconnecting the switch and the hoses and the housing then came out quite easily. The float housing itself disassembles quite easily which made it very easy to clean. Reassembling was also quite straightforward and then it was just case of refitting it back into the dishwasher. The dishwasher now seems to be working perfectly. This saved an expensive call out for a repair man which is much appreciated. (P.S. ours is a Bosch dishwasher).
Hi Helen,
Compliments to you and your "schoonvader" :) it worked like a charm, not only saving me the money for the repair guy, but also having to do the dishes the whole weekend (yes they tend to break down on Friday evening...)
Greetings from Italy,
Tjeerd
Just want to say a big thank you for the great video...I have fixed my dishwasher...The check water light was on...I cleaned the water inlet filters, cleaned out all the main filters...still no luck. Took the top and side off and wiggled the red connecting rod & hey presto...it works again!
Thanks for the dishwasher fix, it worked a treat. I used a syringe filled with Soda Crystals, white vinegar and hot water and it cleared most of the the gunge from the float assembly. Have cleaned it out before but this advice is much clearer with the pictures. May try to take the assembly apart next time as there was still some gunk left in it. Thanks for the help you saved me a good amount of money and it was satisfying doing it too!
Was thinking I would have to replace my dishwasher. Had exactly the same problem as you with a sticky float. I actually remove the whole float assembly, stripped it down and cleaned it. Refitted it and dishwasher is as good as new. Great video. Thanks for the info.
i have just fixed my machine ! luckily it is exactly the same as the one in the vid, bought in 2006, the float was gunked up, cleaned it out...working as normal ! i will pay this forward, and drop some money in the next charity can i see...thanks !
Many thanks. This and the comment from cvandoren1 helped me troubleshoot and repair. Saved callout of a repairman or the costs of replacing for new. My dishwasher is currently running now with a dishwasher cleaner solution to shift any remaining clogs.
@Trickyricky314
Thanks for your response.
You did a thorough job, probably the best way. I didn’t have the courage to remove the float housing completely. Would be nice when the float was more easily accessible...
Done this fix on my dishwasher recently and this did the trick... Nice one, I cleaned mine with De-Scaler which is just a little quicker, and spent a little longer getting all the muck out, but spot on with the info. Thankyou, you probably saved me a pretty penny :)
Thanks so much for your efforts in posting this problem and solution. I just finished fixing my Bosch dishwasher and probably saved a few hundred dollars! Thanks again.
Thanks for your video, saved me an engineer call out. My problem was the lower float causing the pump to run. The drain hose was blocked and the dishwasher overflowed flooding the bottom of the machine. Dried out with lots of kitchen roll, pump stopped machine working perfectly again. Great Job Thanks
Very useful, ta! I failed to drain our dishwasher before moving it (for others: see "transporting the dishwasher" in the manual!) and I needed to drain the overflow pan. While I had the side off I cleared out a fair bit of gunk from the float vessel. Thanks again!
By the way, it took a while to figure out that the top must come off before the side, and that there are plastic lugs to squeeze before sliding the top backwards to get it off.
Hi Jon,
Good to hear the video was of any help. Removing the top was also a puzzle for me, thanks for the addition!
Very educational -no talk only actions. I love it!
Thank you very much for this, I took the opportunity to strip out all the offending parts and cleaned them up and now works great.
Just fixed my dishwasher using your video. Thanks so much Helen. I cleared greasy deposits in the upper float using boiling water.
you have just saved me several bucks plus a day waiting in for the repair man.. thank you.
For those who were looking to remove the whole assembly to open it up and clean it more thoroughly, I found it to be relatively easy: The seperate hose assembly to the left has a black clip in the middle, reease it (pull it?) and the whole assembly we be loose enough to pull up and out of the left of the float assembly we are working on. Next pull out the flat piece of plastic behind the float assembly, noting where it goes for re-assembly. Now pull firmly up on the whole float assembly and it will easily come up some while staying attached to the drain hose. At this point the red rod will come free, set it aside. Now look to the left side of the switch. it is help in place by some bumps in the clear plastic around it. Spread that apart gently and you can pull the left side of the switch (and its red arm) up about 1/2 inch or more. Now you just have to pull the black top off the float assembly - there are 4 black protrusions that slide into holes in the clear body, just stretch the flexible clear sides and it is easy to free them, the one on the back left is the hardest and biggest. Once it is free you can work it over the short red float switch arm since you previously raised that high enough. work out the red float and clean away. I used a toothbrush. Reassemble in reverse order. Whole thing took me 15 minutes to figure out, clean, and reassemble. Have fun!
Thanks for the update, I made a reference to your comment in the description of the video. I cleaned the float as shown in the video more than 2 years ago and still functions OK. So for the ones who are afraid to break plastic parts...
I found that the circular pressure sensor at the top unclipped easily, and that gave access to everything underneath without having to remove any other parts. The tube below the float was also bunged up, but a thin wire pushed down the side of the float was enough to push it out.
This video has been very useful, and saved me an expensive repair bill.
Thanks Jason, I will try it next time, but so far my machine runs fine.Jason Judge
good tip - Mine was completely gummed up with calcium as we are in a hard water area and it had glued the float down. The only way to fix was to take the whole unit apart
cvandoren1 i
Thanks so much for sharing this - just perfect! So easy to follow and to do repair.
Thank you so much. I had water in the pam. I used a towel to dry it and clean the float. The dishwasher is working fine now. The leak that caused the overflow is unknown but I am happy that I know what the problem is if it happens again.
Thank you very much, Helen, saved us a small fortune and a lot of hassle (things always break at the weekend, don't they)!
Float sticking with scale. Sorted!
Thanks for this vid, was dreading ripping the machine apart to find out why the pump was continually running. Hadn't noticed that it had been on nearly 4 hours.... only realised when I went in the kitchen to make a cuppa and it was still going and smelt like the pump was overheating.... was scratching my head till I saw this vid and solved the problem in no time, was the top float clogged up. Cheers
Thank you very much indeed. A simple tip of maintenance which made my dishwasher back on track!!! additionally I de-assembled the "tripes" water circuit to apply the same treatment to unclog the top surge valve. Perfect!!
your video was just what I needed to save a large repair bill.
thanks
Thanks for your reply. I hope that other visitors will benefit from your response as well!
Thanks!
I have had to do this to my Siemens dishwasher at least once a year for 20 years. My model has the leakproof system pipes which switch off the water supply if a leak is detected. When the float chamber starts to get dirty, you can hear the water supply switching on and off about once per second as the float sticks which can rattle the pipework. That's the first sign that it all needs cleaning. I have tried all sorts of drain arrangements and have never been able to prevent it from doing this on a regular basis. I suspect it is because we have the hefty stainless steel stand alone model with the heat exchanger. The left side is against a kitchen unit and is always warm and moist so mould can easily build up quickly. i always remove the float chamber, dismantle it and clean everything thoroughly. That way, it will last about a year, rather than nine months. I would also recommend cleaning the corrugated pipe which leads from the bottom of the float chamber to the pump. It can get very clogged. If it wasn't for the fact that it looks better than anything other dishwasher i have ever seen , is still very economical (even by todays standards) and washes well when working, i would have replaced it years ago.
Brilliant. fix the issue first time round.
Thanks a "service call"
Cheers,
Martin
Thank you, I am totally in your debt! Thanks for the effort of uploading this, its saves people money and it saves the Earth from more waste 👍🏻👍🏻
Thanks for the vid, I had the same issue and have managed to clear the dirty float, all is now well with my dishwasher and more importantly I am no longer getting grief from her who shall not be named. I would add that you will know when the float and the exit pipe underneath is clear as water will go straight through the float when you flush it into the top.
Whooo hoooo thank you sooo much for posting this video. We cleaned out that float and our dishwasher works again!!!!!!!!
Just followed this video and it worked a treat. Thanks Helen.
Hi,
Worked a treat!
I have had problems with drain pipe before but this had me scratching my head until I saw your vid
Cheers.
Thanks for posting this - just fixed my dishwasher (Neff branded version). In my case there was water in the overflow pan, next step is to work out why (some sort of slow leak maybe). But at least I get thank-you points from Mrs. Dunhackin for getting it running for now.
Thanks, hope you will find the leakage.
Thanks for the video. In my case the float 2 at the bottom had just become dislodged out of position. I nudged it back with a screwdriver and all is now working. Thanks again.
This switch is actually the flood prevention switch, it is not used to set the level of the water. In my case the drain at the bottom had become blocked with mold. A piece of copper wire, followed by the plastic insulation from main cable threaded around the orange float and down the drain cleared this. Some cleaner as well - and plenty of water put into the float chamber until it runs easily and drains quickly. Thanks for all the other suggestions.
GREAT video!!!!! Thank you!!! My overflow was full. Not sure why, but it's not leaking? Removed the water and the dishwasher is working perfectly. thanks again!!!!
Excellent video. Mine was even easier to fix, it was a build up of calcium stopping the red rod drop down cleanly. Quick brush and working again. As I'd stripped it down to this level I took the extra time to clean the floats. I've had 12 years of faultless use from by Siemens disk washer and hopefully many more to come.
yup, this helped us as well. Had water in the bottom overflow tray. From your vid at 0:27 the semi-clear plastic u-shapes item was filling with water, and has a small overflow hole at the top. The water hoses were constricted with gunk, so after I got the pump working with this vid, we ran a cycle with a dishwasher cleaner form the supermarket, now is fine.
Thanks for the great video. I had already located the problem before finding the video (I should google more) but it will be very useful for the final cleaning.
Thanks again.
That tutorial works fine for me! Thanks a lot!
Many thanks for the video! My Bosch was doing exactly this..Impeller would run continuously with door open or closed. Had taken it apart assuming drain valve was stuck open. Was dreading getting into drain valve like pulling an automatic transmission. I figure Bosch decided to build the diswasher AROUND the drain valve assembly. I was already on craiglist looking for a replacement when I saw the video. Long story short..gunk in upper float, removed that assembly and cleaned. Works, thnx
Thanks for this valuable comment!
Thank you so much. This was exactly the problem. The last time it was the pan was full b/c there was a flag in float 2. This time with no water in the pan I didn't know what to do until I found your video! Thanks again!
Thanks for the video. I have just fixed my dishwasher that had the same problem. Really helpful :)
This video is excellent, I solved my problem. Thank you so much!
You're welcome. Still I think that Bosch should mention this error in the troubleshooting section of the instruction manual...
thank you. I used a paper towel to dry up the lower pan and now it works great.
Perfect tube vid . Cut to the chase .bravo!
you just saved me like 50eur repair costs. thank you so much.
Thanks! worked a treat, but there was no soda in the farmhouse here in France but a little toilet cleaner did the trick (spent about an hour rinsing it through though, just in case!)
Thank God, what with the French having 6 course meals and using about 40 plates to do it!
Thanks. You found water in the overflow pan, did you find a leak? Here in the Netherlands soda is sold in supermarkets as “soda”.
Wiki says: in some other countries it’s called washing soda, soda crystals, or sal soda in the detergent section of stores, it effectively removes oil, grease.
Soda is old fashioned home cleaning remedy. The advantage above a normal detergents that it removes fat better and it does not foam. Soda is a strong base, the chemical formula of soda is Na2CO3.
Good video. These instructions worked for me but my float wasn't dirty. I just took everything apart, inspected it, and put it back together - this seems to have worked. I'm guessing the pump switch or one of the floats was stuck and it just needed a slap.
Hi, this save my life :) I had by side cafe machine cleaning liquid and fill some to clean this plunge.
Great trouble shooting and remedy skills on such a complicated dishwasher. I have a similair BOSCH unit that is now 10 years old and still running perfectly due to regular maint. Question: Have you wondered why home dishwashing units are so complicated, but commerial dishwashers are very simple and much more effective and efficeint?
AWESOME! This saved me a bunch of money - thank you for the great video!
Worked like a charm! Regretfully, I do have a leak but can see where it is.
Thanks for the video.
Just helped me fix our bosch dishwasher during coronavirus lock down.. Was the drip dray float switch under the unit that was activated.. Causing pump to run and flashing tap light... Thanks for the video
Great video, same problem with my dishwasher. Now it is working normally. Thanks
somebody give him medal! Mate im send you my medal! its save my "life", money! its just need clean what you show in this wideo! Thanks and greetings from Lithuania!
My Bosch is 20+yrs old, and slightly different, the water leak float switch is in the middle of the bottom plate, it'd just accessible to fingertips if you take the right hand side panel off. My problem was due to the original kitchen cabinet installers putting the dishwasher into the recess on it's lowest possible height, the bottom panel steel plate was sitting directly on the floor and had flexed/bowed upwards pressing on the float switch. Age/heat had eventually caused the switch to operate. After adjusting the dishwasher's feet and pressing the bowed steel plate back to it's normal position all is good. I've bought several brand new dishwashers over the years, but nothing comes close to cleaning and reliability of this 20 year old Bosch.
Another satisfied customer! I'd be interested to see how Trickyricky314 removed the float house completely if anyone fancies uploading a video.
Very good thorough video. Thanks for the upload.
I would expect that the pump will stop when the micro switch is disconnected! Can you check if the contacts of the micro switch are still OK (measure the resistance, press the switch, the resistance should change).
A reader sent me a link to a service training manual, it might be usefull. Because I can't sen't links in this reply, I included the link in the description of the video.
Mine has a water leak that was causing that same problem, with door open and power on, pump was running.!
Bought o-rings for every tube size is 5.33x10.46 four o-rings. Plus two times 2.62x18x72 and one 2.62x20.3
Job done!
Thanks for the video.
Thanks for that, fixed my dishwasher!
Thanks, gave me the hints as to what to look for !
You saved me big $$$
Sorry for the late response. I think Bosch did a good job to lower the risk of flooding. Unfortunately they made the float system not easily accessible.
I have never seen a professional dishwasher. How did they solve the problem?
Thank you so much! Had a serious flood in our kitchen (9 inches deep) after heavy rain causing the drain pump to run continuously. Simply needed to suck out the residual flood water out of the catch tray, dry the electrics with a hair dryer and off she went again. Would have just bought a new unit without this video. A1+++
Excellent video, very helpful, thank you very much!!
IT WORKED!!!!! Life saving video, THANK YOU SOOOOO MUCH!!!! 😁😁😁😁😁😁😁
And here I though Bosh was a quality brand, what a lovely junk I have had many other dishwashers like whirlpool never had an issue and paid a fortune for this thing just this year and the pumps is just running and the buttons won’t reset.
Junk!
Thanks for the video... great job!
Sorry your Bosch had a problem but when you repair as many as I do (I'm a landlord with 23 dishwashers) you see that the Bosch's are built so much better than the others.
Thank you so much for this video, it solved my problem perfectly!
Thank you. Your slide show got my dishwasher going again. I had water in my overlfow pan,
not sure what's up there.
One question what do you mean by "hot soda solution"? Thanks again
Thank you so much, excellent tutorial, machine pump problem fixed!
I also did repaired it twice already in my machine, SD13JT1B but probably also SD13GT1B and others that start with SD13 . First time after 2 years, now after fifth year after purchase. In my opinion as a service technician (other machines but I have technical view on such things) I think that without disassembling this tubing/floating thingi you can't repair it completely and it will stuck sooner or later again. So I did clean that. Because I couldn't pour out the water from the bottom of machine without making huge mess in my kitchen (floor panels) I took out this water with towels etc. and stick this red rod with tape in low position. And again problem occurred after 3 years after this. This time of course machine didn't try to pour out the water since the rod was blocked by me (anyway it will newer pour it out since it doesn't even suck it from the bottom of machine but from main chamber inside) . So I had a small flood this time (controlled one :) ). The mechanism got dirty even more this time. I think it's very poor design. Should salt make water softer before it gets to this part? I had no any slightest problems with dishes even on zero amount of salt ever. After first failure I set to 1 according to my water softness . It didn't change anything. I'm thinking about installing some filter on water entrance. Did anyone fix it permanently to not have to do it again every 2 or 3 years?
Hello, thanks for the excellent guidance. We had a partially open door whilst washing, (a spatula had jammed in the door), resulting in some water leaking into the catch-tray at the base of the washer, hence activating the float. We managed to tip the water out and finish the job with some kitchen towel. We wouldn't even have attempted this without your video. Thanks again.
Hello on my dishwasher it was found to be a polystyrene disc (sits on base of machine) that works to balance a grey arm attached to the RED ROD had been chewed by a mouse. Mine was a NEFF dishwasher but looks exactly same as in the video. Also heard of other people after looking on net had same issue!
Many many thanks for this video. The problem with ours was the lower float. Drained the water out and the machine appears to be running again, with no obvious leaks. *fingerscrossed*
Thanks for this. Will inspect float to see if this is my problem.
Thanks! CLR made quick work of the buildup.
Cool, worked for my Bosch. Root cause overflowing because of clogged tube.
Hi Great video, done everything as per the video and it worked a treat:)
Sorry, I don't know. Did you try to reset by pressing the 3 and 5-th button?
Good luck!
thank you very much , it is spot on now.
Hopefully this is what is wrong with my dishwasher. Great info video.
Excellent video!
I’m getting the same issue. Hopefully your video will help me.
Thank you so much - solved my problem!
Thanks,got mine sorted,it was the same problem ;-)
It worked! Thank you!
Instead of using soda solution (sodium carbonate in water), I like to use either pure white vinegar, which is much stronger for clearing up lime scale, or even better yet a 1:1 mix of CLR (Calcium, Lime, Rust remover solution - from your hardware store) mixed with water. Good to also run about a cup of this through your dishwasher every month to keep it lime and scale free everywhere in the path that the water goes.