Figuring out how a bosch aquastop works
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- Опубликовано: 21 фев 2018
- This was pulled from a bosch washing machine.
Observe all safety precautions when using electricity.
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You are amazing. This helped tremendously in my decision of dishwashers.
Thanks to your video I figured how it works. I had an E18 flashing ( it was th pump got stuck by a coin), I opened the drain and removed the coin from the pump. Unfortunately I was not careful and some water spilled and went in the washer basement, E18 was solved but E23 appeared (aquastop activated). I had to open the back of the washer, drain the bottom of the washer and after that also the E23 was gone! Thanks again a lot, you saved me from an expensive bosch technician visit...
Thank you for the brilliantly simple explanation.
Awesome man, very well explained. Cleared some of my doubts.
Thanks a lot👍
Thanks for posting. Just bought an AEG machine with a fractured aquastop case and a broken plug. With your help, I'll be able to check if the break in the case is a problem. Looking at your video, I don't see an issue.
AEG do not list the aquastop for my machine as a spare which is a bit odd.
Was trying to figure out your accent. At first, I thought American but it all became clear when the pint glass when the Emerald Isle appeared. You need to get that charged and congratulate yourself on the great video.
Also, loved the drawing on the worktop with markers.
Brilliant video. Explains alot to help me with a problem. Thanks guy!
thanks so much, this helped me figure out why our Bosche washer was saying there was low pressure/blocked inlet. There was water inside the outside hose probably activating a similar system to stop water going down the pipe
Thanks so much, I have been trying to figure out how that mechanism works and what it does... Love the use of the Guinness pint glass too, how patriotic of you lol
Great explanation. Essentially if a machine displays a 'stopcock or water inlet' fault then it is likely to be a leak of some sort as opposed to poor water pressure or a blocked filter then ? Have a Miele displaying code and the filter within the aquestop is clean .
Will give a try
Thanks for posting this video :)
Saved me during lock-down!!! Washing machine stopped working. Inlet tap sending water fine, but the pipe wasn't allowing water through. Saw the electrical cable in the pipe and thought something wasn't right... now I've watched this it all makes sense! I've must have had a bit of a flood. Now I've got to figure out how to get under the washing machine to empty the water and figure out where the leak is coming from! Thanks again!! Life-saver!
In case it helps someone else, for me i disconnected the hose from the machine (at the machine end) and tested by doing a rinse. It didn't call for any water, but I could hear the motors inside the machine (not the pipe) trying to take water. From watching Owen's video, I can see that the machine needs to request water via the cable in the inlet pipe, which in my case it wasn't. Tested the cable using multimeter and there was no connection (i.e. wasn't registering any resistance - not no resistance), maybe suggesting the cable in the inlet pipe is broken somehow... I'm going to take the cable apart and see if i can fix it, failing that see if i can order a new one. In my case, i've taken a look at the flood switch and it's disengaged so it's not that that's stopping the pull of water... can't figure out if it's the cable (in the inlet pipe) or the machine that's stopping things here. Will keep you updated in case it helps someone else. Mine's a NEFF washer/dryer (presume NEFF/Bosch/AEG all use this system)
Quick update:
I tested the cable within the washing machine to see if it was sending voltage when it tries to fill (I just put it on a rinse+spin cycle to test with the multi-meter attached to the connector. It does, which would suggest that part is fine and the cable in the inlet pipe, or the valve in the inlet pipe is broken.
For the time being, I've taped over the cable which triggers the Aquastop within the machine and swapped the inlet pipe out for a standard inlet pipe until lock-down is over. This allows water to go into the machine and i can wash clothes etc for now. Doesn't stop any flood though, and i did read somewhere this invalidates guarantees, not sure if that's true... I'll get someone to look over it then when lock-down is lifted! #StaySafe
@@MrDanananna my Bosch is doing the same. I pulled the machine apart because it wasn't washing dishes well. Hoping I would find a blockage but unfortunately nothing obvious. After putting it back together same problem. But also some cycles it wasn't filling properly but the pump was running. So I poured some water in the sump and it was washing fine.
So now I've got to figure out if this "Aquastop" is a fancy name and same thing as an inlet valve. As it seems to be a common problem.
@@jamlee344 check the floating switch in the bottom of the machine to see if there's been a leak. Sounds like you're having the same problem as me where the machine doesn't request water through the aquastop inlet pipe
@@MrDanananna yeah no signs of leaks.
This is such a clever solution. I bought a house last week and now I'm looking for appliances to buy. After watching this I will definitely buy Bosch!
It is quite a difficult question to answer, I would buy older bosch, but I am not sure about new bosch! I guess it depends on if you will repair them yourself or get a repair person to help. Congratulations on your purchase. Do not buy on credit!
@@bootsowen Hi, thanks :) Yes I bought it with 10% cash and the rest over bank credit, 10 year payment plan. Unfortunately that was the only logical way, since here in Zagreb, Croatia monthly rent is too expensive and buying is much more reasonable. And since payment will be done in less than 10 years interest will not be too bad.
Thank you for advice. I'm not really concerned about few malfunctions now and then, my biggest concern is potential water damage to my house. And that's why I would prefer machine with protection from water leaks even if it stops working after few years and needs repairs.
Do other manufacturers also have those kinds of leak protection features?
Don't buy Bosch washing machines they are garbage, will stretch your clothes out and drive you nuts not wanting to start when there is no fault, it will say the filter is clogged you open it and pull out 3cm worth of cloth from towels or whatever and then it starts again (or sometimes not until you wait a day or pull it apart and reconnect it). Only buy Electrolux, ASKO or AEG (AEG is only good on top models). My Bosch cost over $1800 and was the top of the range at the time and broke within 3years. Absolute trash brand for white goods. Samsung is also trash.
Thanks man you saved me ! 👍
What a great video.
great video man, thankS~!!!
Excellent, thanks.
Thank you.
😍
Thanks for the explanation.
My machine constantly switches the aqua stop on and off when it has a heavy load and shakes a bit after a couple of loads in a row, so i think the float is loose or a tiny amount of water remaining in the tray. No error code. Logixx 8 sensitive, over 10 years old.
Follow-up - the machine is working again.
The base of the washer had a lot of loose rust, but was dry now, so I cleaned a bit around the float and gave it a jiggle to make sure it was moving OK.
Strangely, just before I got the back off the machine, I was doing a short wash and the motor failed.
First time I needed to replace the brushes since new - previously the motor's thermal switch failed about 5 years ago, which is now bypassed.
I cleaned the commutator and fitted brushes $5 from ebay. I think about another 5 or so years until the commutator is completely worn through.
It's as good as new again.
One difference on mine, it doesn't have the plastic tray, and the switch assembly is black, and is part of the side/base moulding between where the feet screw on and the shock absorbers bolt through. The float just hangs above the metal base of the machine (hence the rust around it).
Just bought a Bosch 800 series today and they changed the design. You connect your water hose to the base of the unit now and that could leak and there’s no protection at the hose anymore.
Hi I have a Bosch sms4haw40g dishwasher that says on the app aquastop has detected water is this the same principle on that ?
PS thanks for your video
Hi bootsowen :)
I have a situation where I have had to do some repairs on my washing machine. It is a Siemens WXLM148AUK/19. I have done the gasket, door switch and powder drawer and replaced the repair that I did on the door lock nine years ago (which was a contraption including 'gaffa tape' and a piece of the plastic handle from a large box of washing powder... now replaced with more of the same but probably a better quality plastic handle so it will probably outlive me this time! lol. ;) However, I now need to replace the brushes.
My problem is that the isolation valve that turns the water off is stuck and even after WD40 and my sewing machine oil being applied for the last 4 days I cannot turn the switch to stop the water inlet flow. (after looking on every youtube video of these valves it seems they are built to fail after a very short time. Built in obsolescence at it's finest. I cannot do anything to the pipes or replace the valve as my house is rented.
The Aquastop I have on my washing machine is a genuine Bosch and is not like the universal ones that have just a normal screw on connection to the washer. Mine has a box like thing that has loads of wires and techy things where it joins to my washer, ( able to be seen when the top of the washer is off). I am working in a confined space and need to tip the washer up but cannot as the pipe restricts the movement and I am worried about disconnecting the aquastop incase it is pressurized or has some sort of stored electricity in it, (it has a lightening image on it). Is it possible to remove the aquastop from the washer end (not the isolater valve end) just while I take the motor off to replace the brushes or will it damage the aquastop? (or worse still give me a cold shower that I haven't asked for). I have looked on all the Bosch sites for info but none cover what my problem is.
I may be a 5'2" female but I cannot work in the space that I have without disconnecting that pipe!
Thank you for trying to explain how things work to people like me, who at 62 still think they are capable of mending their own gadgets! Your Mum must be so proud of you. :)
Thanks for the question, very detailed. If I were you I would try to stop the water somewhere before the isolation valve, you probably have a stopcock on the place that you live. If you can find it and turn it off then all of the water in the house will be off and so that washing machine valve will be redundant and you can unscrew the aquastop hose.
If you do turn the water off as it comes into the house this is an opportunity to replace the valve. these are usually cheap.
If you can't turn the water off, look harder at the washing machine valve. I presume that the one you have is like mine and has a little red or blue plastic handle that is held on with a screw. if you take the screw off and the handle, you can get a spanner, or locking pliers on there carefully and gingerly work it loose. It will probably be fine if you give it a good bit of force, the plastic bit can't take it but the metal bits beneath usually can.
Another option can work if you have plastic pipes to the valve, is to crease the pipe so that water can't flow. there is a special tool for this, but a locking pliers (vise grips) used carefully so it doesn't cut but does close the pipe internally will stop the flow.
I wouldn't faff with the aquastop end, if you do damage here it will be harder to repair than the valve.
I have posted a few videos of how to do the brushes on bosch machines, that probably have a very similar motor to yours. They might be helpful to you. When you have the motor out it is worth blowing it with compressed air to get the old carbon dust off it, or use a paintbrush and a vacuum cleaner. the dust can get around the machine and do damage, it is worth carefully vacuuming the circuit boards as well because this dust is conductive and I have seen a few machines wrecked this way. Or don't do any of that and you will be fine too.
If that doesn't make sense and me more questions, or post a video of the parts in question.
Owen
Yeah but. What if the water inlet valve failed and the tub continues to fill will the discharge pump turn on and drain the unit .
My hose is not long enough to reach the tap… can I extend the original Bosch hose (with aqua stop) with another bosch hose that also have an aqua stop on it? Is that going to mess everything up?
I guess the microswitch also triggers the drain pump as that plastic tray isn't designed to catch large amounts of leaking water.
I am not sure that that is so. If the water gets to the aquastop switch in the tray it is from a leak and the pump would have no effect on it. I think the aquastop turns off the water at the faucet so that a leak doesn’t get worse.
Did U plugged regular AC power supplay 120v (US) or 230v (EU) directly to the AquaStop valve?
240v (UK)
Came here to find some explanation on where does the Aquastop solenoid get its power from, because mine's attachment to the washing machine is just a plastic and rubber screw - no conductor anywhere to be seen! Looks like the one you examined is instead fixed to the machine, from where power wires run out. That makes sense, but doesn't help for my case... (And it's a brand-new Bosch machine! no shady third-party or whatever)
Hi there, maybe this video will help you, let me know. ruclips.net/video/8P4uC1jat_U/видео.html
Thank you, it helped to understand how the idea can work without power... and made me take a better look at my hose.
Turns out that the washing machine is listed as having Aquasecure, not Aquastop. So probably it's just like Watersecure - even though the shape is the same as Aquastop, and doesn't have the small window/indicator you show in there.
Anyway, this all solves my question, which was how bad is it to add a standard hose as an extender. (answer: survivable)
Thank you so much!
Thank you, man! That really made some light!
I have such a hose that has been distorted by a mouse. I can not buy it as a spare part and taking the dishwasher to the service is out of the question.
If I understood correctly, the outer hose will only be used in case the inner one leaks? Because I can fix the inner hose, but the outer one only if the pressure is lower.
the outer hose will only be used in case the inner one leaks? yes. the inner hose is the only one that carries water most of the time. the outer hose would only be used if somehow the inner hose sprung a leak (without the outer hose getting a leak) and this outer hose would guide the leak water down to the bottom of the machine where the float switch will stop the water at the faucet.
bootsowen good news, thank you! I will be able to fix it in this case!
Thank you. Amazing explanation. Fan for life!! Cheers. Just wanted to know whether the same system is in Bosch dishwashers too? Because the inlet solenoid and the sleeve pipe is there too.
I always used to wonder why they have placed the inlet solenoid at the point of connecting to the faucet rather than in the machine inlet.
Hi, I think there are two inlet solenoids, one at the faucet and one inside the machine. The one inside the machine could be multi way for the main/pre wash soap drawers. I have seen similar on a miele dishwasher. But I have also seen similar systems without the hose where there is a float in the base.
@@bootsowen Thanks for that bit of knowledge. I am from India and to the best of my knowledge, Bosch washing machines here do not have aquastop, only dishwashers come with it. I used to think this was a patented system of Bosch, but all brands dishwashers come with this solenoid valve at the faucet end of the water inlet pipe and the enclosed sleeve . Or is it not a patented system?
I did not know about this valve being part of aqua stop system till I saw your video.
I know water inlet to washing machines have divided inlets into the prewash, wash and rinse chambers in the machine. I used to think because of this multi valve inlet, they have not provided aqua stop in washing machine as it would make the system quite complicated.
Thanks once again. Wishing you all the best. Love from India.
Just bought a Bosh washing machine (bought in Australia, made in Germany) and it does have Aquastop.
But does the fault clear automatically and does the switch reset itself once the fault has been solved and the water mopped up? I triggered the device accidentally by knocking a bucket of water over so it is not a fault in the machine. I have dried the tray and autostop but now need to know if there's anything I need to do to reset it all. I have not touched the valve at all. Thanks.
No Idea, why not try plugging it in?
Great video and love the little drawing at the end , we have an issue where the washer kicks in but very quickly the water check light illuminates and the cold feed water would continue to flood the base of the unit and eventually out of the machine onto the floor. Any thoughts ?
broken cold water feed?
@@bootsowen thanks for replying, think I will need to look into machine in more detail , including the cold water feed, are you suggesting a broken solenoid valve ie the machine will just continue drawing water from the feed source, so , a bust impellor etc. Hear from you soon and thanks from Scotland
i have thought about it a little more since I saw your message first. There is probably a hose inside somewhere that has come off, or something has cracked. Usually it is the most likely thing, so probably a hose. Either somewhere that water is flowing or somewhere that water gathers, like at the bottom of the machine. The machine has a pressure sensor that tells it's controller when enough water is in it. If the water keeps leaking out then it will never fill, so will keep leaking until a predetermined time is exceeded. So it is probably not the fill valve. BUT, I don't know what make and model of machine you have and you don't say if you have an aquastop, though I presume that you don't. I would say take the top off, turn it on again and watch what happens. Just turn it off again when you see where the water comes from. Obviously, if you put your hand in there with the top off you could get electrocuted, that is your risk. I would use my eyes to look for a leak. Let me know how you get on. Good luck!
@@bootsowen About to have a better look , model is 9000441014, trying to locate online manual ?
@@bootsowen Apologies , when I said base of machine , I meant inside the unit itself and not the external base, it fills from the feed and check water light comes on immediately and will just keep filling, model no 9000441014. Sorry
I want to install in my dishwasher an aqua-stop mechanism. Provided that the dishwasher is powered on, that aqua-stop valve is always energized through the duration of the cycle ( letting the flow of water), or it follows some on - off pattern ?? Thank you !!
The aquastop that I was looking at is an integral part of the machine and controlled by the computer within the machine. I don't think it is possible to fit one to a different machine, unless it was somehow designed for it. Post a video of what you are doing.
@@bootsowen Thanks for your answer ! I will post the outcome !!
smart
Question: does an Aquastop has to be positioned vertically down from the tap or does it function equally well when positioned horizontally or, possibly, vertically up? My question is inspired by space problems. Hope to read your advice. Thx.
I don’t think it matters. The solenoid valve should fail safe, it should always be closed under water pressure unless it is opened by electricity. Try it and see? Let me know how it goes
Was there an answer to this? I have the same issue with a horizontal water pipe and no room to turn it downward... :/
Question please 🙏: How can I know if my aquastop is good or defective? I blew through the hose and nothing came out on the other side. Checked the ohms resistance on the wires and it's 4.37K ohms.
replace it with a plain hose? Is this possible?
@@bootsowen Already checked the Aquastop by plugging it directly to AC power. The hose is good 👍🏼!
Don't understand why my dishwasher won't start to take the water in 🤷🏽♂️. Checked almost every possible reason. Can't find it..
Hi thanks for the great video! I currently have an issue with mine, don’t suppose you know the resistance of the Solenoid coil ?
No idea. Can you test if it works using electricity?
@@bootsowen thanks for the reply, turns out it was working correctly and the washing machine had a leak so it shut off the water! Fixed the leaking o ring seal and back running again. Great video and explanation of how the leak detection works 👍
My aquastop (on Cylinda machine) is closed by default and when I put current in it, it opens up...
Seems like my version is regulating the water intake instead of being a safety mechanism.
I needed a longer hose, hence why I removed the original one. I screwed on a standard hose and my machine filled up with water, no stop anywhere inside the machine..
So my guess is I need the original piece that looks like a aquastop, but in reality is the actual water inlet.
Does this sound weird?
What you say makes sense, but seems like a tricky way for the manufacturer to do it. You could just put the original back on and add a hose and coupler and attach to the back of the machine, sometimes these things need to be vertical.
@@bootsowen Thanks for your reply.
Well, I kind of messed up the original hose at the back end. In my version, it's a tiny water hose that had a soft plastic enlarger/clamp at the end. So now when it's cut, the hose in itself is too tiny to attach back. I must find some way to attach a rubber enlarger, from 6-7 mm to approx 10 or 12, which is the water intake diameter of the machine inlet.
Aside from that, I did connect the electricity in the hose, and connected it to my tap, holding the other end (the end that should go into my machine) over my sink. I started a program, hoping to see the machine feed electricity into the magnet lock, opening for water. But nothing.
Do you think the machine could sense that the hose is not connected, via e.g. pressure, and therefor not activate the water supply?
P.S. sorry for long question :)
Cheers and have a merry X-mas
I have posted another video about an AEG aquastop that was based on gravity, pressure and magnets. Maybe that will help you.
Have you looked under the top of the machine to see if there is a solenoid for water inlet in there. it seems odd if there isn't
@@bootsowen Thanks, I'll look into this.
Well, with a standard hose the machine just keeps on filling up, so I guess there is no solenoid valve inside the machine. That would have stopped the regular hose in that case, I guess?
I have some question regarding my AquaSTOP outside pipe
After remove laundry, I saw tearing at the outer wall of aquaSTOP inlet hose almost like in that video.
Do you reccomended to change a new one? if I'm not change the host what will gonna happen such as error code or leakage? Now I stick them using transparent tape and still doubt to change because changing whole aquaSTOP kit it's too expensive and I have no idea to change outer wall.
If your machine is working fine and doesn't have an error code why are you worried?
bootsowen Hello bro, The machine is fine. I turn him off both electricity and water every load. But a bit worry about little crack which I don’t know what take place after saw your vids it quite like mine now. Maybe I’m worrying too much.
@@sedthavudhtaweesapaya7026 Maybe?
its activated on my old washing machine.. I think it was the door seal leaking.. can I reset it once I replace the door seal do you know? thanks,
I think it should reset once the float switch under the machine is dry.
thanks, for you assistance, paul@@bootsowen
So does that mean when there is no power is closed from the tap mechanism
It should be closed under no power, but there could be a fault with the valve or some debris holding it open.
I currently have code E15 on 800 series Bosch dishwasher. This has happened when the water inside the supply line freezes. We were at 14F (-10C) last night. I'm guessing that's why I have the code. The dishwasher is humming and appears to be trying to pump water, or something... I'm not a mechanic. Pressing the start/stop button will not turn the machine off. Flipping the circuit breaker won't get it to stop either.
In the past I've always been able to pull the dishwasher out from the cabinet and tilt it forward, then set upright, push back into cabinet space and all was well. (Hope this may help someone else.) I always thought that might be breaking a vacuum.
Not this time. Christmas eve. I need to be cooking instead of plumbing! I guess I'll try removing the water supply hose and see what happens...hmmm...Maybe I'll warm things up with a hairdryer first. Could be the water in the bottom of the drain pan is frozen.
Thanks for your explanation of the electronics of what is happening and Happy Holidays to All!
If you turn off power at the breaker and the machine keeps humming you have a problem with your circuit. Nothing in an electric machine like this should run when the circuit is off. Let it thaw.
@@bootsowen Thank you for your reply. re: circuit breaker, I had hoped that by turning off the electrical supply for a while and then turning it back on that the computer functions might re-boot and be OK. That didn't work because the float valve was still raised and the machine warning was working correctly, as designed, and the pump groaning sound turned on as it should have.
Good News! The hair dryer DID work YEA!!!!! Once the frozen water under the float valve melted and was drained (by tilting the machine) the E15 code and noises went away. I did have to drain the water from the pan with paper towels, but as there were no apparent water leaks anywhere, I believe the expansion of the frozen water raised the float valve.
This morning, Christmas morning, still at 19F, the water in the coffee machine froze.
Thankfully we should be back up in the 70s F next week. We're not prepared for cold weather here.
hello i want to ask where does the aqua stop connection go to the pcb side
I guess it depends on the machine
My pcb is similat to yours.I just want to know where to connect the aqua stop connector to the pcb
typically a connector will only go in one place, I do not have this washing machine anymore so I can't check.
Is that solenoid ac or dc and what voltage?
The rating is printed on the solenoid usually
Does this AquaStop hose need to be plumbed in?
You have to attach it to water for it to work?
@@bootsowen can it be attached to a standard mixer tap though?
it depends on the fitting on the end of your tap I guess?
Its also an arse to fix cuz a mechanic has to come to reset it... they wont give me the reset code
YoshitoCast Usually the AquaStop error (E-23 on Bosch/Siemens/Neff washing machines and E-15 on their dishwashers) should stop once the water is removed from the bottom tray and the float switch is no longer triggered.
Great video, But please next time dont blow the water out near the safety block .... Man I was on the edge of my seat praying you wouldn't hit that thing.... big risk man.... be smarter, teach smarter... plenty of stupid on the internet to unlive themselves copying you
Have a look on my channel for a video of me putting my hand in a bucket of water that has a washing machine motor in it running and connected to mains electricity. What are you worried about. What do you think will happen if a safety block gets wet?
@@bootsowen if you're that confident with your mouth on a hose of water and squirting that water onto 240 or 120v ... I can't help you .... Those are your risks to take. I'm far from uneducated about electricity.... So all the power you. I'm out of this convo now
Does electricity flow through clean water? You are far from uneducated? All power to me! I'll take 240v!
@@bootsowen o.g.dude, tap water is not distilled
4 mins or so: You connect mains power, you have water, and you blow down this wet pipe. No, no, no!!!
LOL< have a look at the video where I put my hand in a bucket of water that has a washing machine motor running in it. Sparky?
Thanks for posting :)