Bosch Series 4 8Kg WAN28281ES/25 Error Code E32 – 10 drainage issue

[Mikey T]

**************** Edit Error code is E36 – 10 not E32 – 10 *****************

Hi all and HAPPY NEW YEAR!

I appreciate given the timing of this post it will most likely not be answered quickly, but I need help, I have a broken machine and nagging missis 😉

As per the title I have a 2 year and 3 week old machine (that’s right, 3 weeks out of warranty) and I am getting the error code E32 – 10. The machine does not empty, has a strange intermittent noise coming from the drainage pump area, presumably when it’s trying to drain – it’s difficult to describe the noise buts it’s like a cross between a knocking noise and slowly dropping water from a height onto something solid, like a leaking gutter on a driveway. You can manually drain the water without issue, the filter area was very clean and the impeller spins freely, with the jerking of the magnets.

After watching various videos and reading various posts I carried out the following to try and fix the issue, without luck.

Checked and cleaned the pump filter – it was very clean with nothing present
Removed and checked the sump hose – it was very clean with nothing present
Removed and checked the drainage hose – it was less clean but completely fine without any blockages
Replaced the pump with OEM pump direct from Bosch (Bosch P/No 8001090259 Hanning DP0 2062 B03)

After replacing the pump I did a wash and the noise was still present but it did drain and did not report any error. On the second wash all of the initial problems returned.

I watched your how to test your drainage motor video (thanks for posting!) and the completed continuity tests on the motors, both are showing just over 200 Ohms until I spin the impeller, then continuity comes in and out.

I’m trying to ascertain whether the above is normal as both motors are testing the same, what are the chances of both motors being faulty? I appreciate it’s possible to have a brand new motor be faulty out of the box but I would like to make sure before starting a return. If this is normal for these motors, what would you advise looking at next?

Thanks in advance, and again, HAPPY NEW YEAR!!!!

[electrofix]

likelyhood of 2 faulty pumps is low in fact based on what your saying i do not think the original is faulty

have has problems where coins have got into the outlet hose and act like a valve so working every now and then

try this

fill with water till it appears in the drum, stop machine, now select pump out and before you start it grab hold of the outlet hose as it comes out of the machine. as you press start feel the outlet hose and you should feel it expand slightly. if it does it means the pump is working.

have you tried running it with the hose in a bucket ?

Dave

[Mikey T]

Thanks Dave, really appreciate for your response!

Apologies, I’ve just amended the original thread, the fault is E36 – 10 not E32, not sure if that makes a difference?

I was thinking it’s not very likely for both pumps to be faulty, I was thinking potentially a controller

I will try this, I’m happy to give anything a go! I have previously tested with the outlet pipe removed from the main drain pipe (it’s not connected to a sink waste it has its own waste connection which is testing fine) nothing is actually making it’s way out of the machine. All of the water remains in the drum and again it drains freely when manually emptying so I am assuming that if a blockage is present it must be after the pump?

I hadn’t considered the coin theory but it makes sense, not sure how to find/remove on such a lengthy pipe. Also, would this explain the noise?

[electrofix]

difficult to say without hearing the noise

if you start and stop the pump, if there is a coin blocking the pipe the pipe will expand before the coin and wont after as the pressure is applied behind it

to get it out you have to remove the hose and with water running thhrough it squeeze the hose to coax it to move

Dave

[Mikey T]

Thanks Dave.

I have just tried uploading a video but you cannot upload .mp4 to this thread, do you know whether there is a different video format which could be uploaded or a way in which I could publish this video so you can hear the fault?

I suppose I will have to try and remove the waste pipe after the pump from the machine and run a cycle so I can see if there’s pressure build up – or not. Thanks, I will try this tomorrow.

I have to admit to being a little confused regarding the testing of the drainage motors as there seems to be some conflicting information. The test video on this site suggests if the motor is in open circuit on a continuity test then the motor is faulty, however on eSpares it suggests that if a motor has between 160 -260 Ohms it’s fine? my motors are both, a pure continuity test it’s an open circuit, on a resistance test it’s 206 Ohms?

Again a big thanks for your help!!!

[Mikey T]

I’m not completely convinced this will work but I have put the video on my googledrive and shared it, link below…. it will not allow me to post this a direct link but if you copy and paste the below link, it should work – I assure you it’s nothing dodgy apart from a dodgy Bosch washer.

https://drive.google.com/file/d/1HJB1WA-y7BCw9Pk4D8aMmSqJpIdl3uFe/view?usp=drive_link

[electrofix]

you need to send me a public link so i can view or host it on utube

as for your resitances. if its under 400 ohms it will be fine. when coils go you get no resistance

also when you checked the sump hose was the ecoball clean and not sticky. these can sometimes stick and stop water flow. i know you said water flows out of the filter but just checking

Dave

[Mikey T]

Thanks again and happy hangover day!

I have uploaded the video to YouTube – Note, this video was taken with the new pump installed, but exhibits all of the original fault(s)

https://www.youtube.com/shorts/fOhe_9grg3Y

If you place your hand on the drain filter when it’s making the noise you can actually feel the noise is emanating from that area.

The sump hose and ball were very clean with no stickiness whatsoever, the ball bounced around freely. The sump hose on these are very small, I got my fingers in there to check for objects and there was no residue, I still soaked it in hot soapy water whilst I removed/checked the main outlet pipe. Also with a little manipulation you can see straight through from inlet to outlets – I am very confident this part at least has nothing in it which shouldn’t be there and is clean.

The main outlet pipe was removed completely and a couple of kettles worth of boiling water were poured through it. Additionally I put it to the tap and altered the pressure and it seemed to be fine – obviously your coin theory still could be a possibility however.

I will try to get the main outlet pipe outside of the machine and run a cycle to see wether there’s any pressure build up that I can see.

Thanks again for all of your help and advice!

[electrofix]

ok that noise is the pump trying to start. it can do this because of wear or there is no water in it. It needs water in it to push back on to start it

Dave

[Mikey T]

Thanks Dave!

This morning I stripped everything back down again just to triple check..

Sump hose – nothing in it and spotless, had the ball out and cleaned everything again, no stickiness and 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} nothing in it.
Main drain hose – checked and cleaned again. I put some irrigation piping through and couldn’t find any blockages and run water through at various pressures in both directions and it runs freely.

When I had reassembled everything I tried your suggested drain test. As a note when I was filling the drum with water I could hear air coming out of the main hose into the sink as the drum filled up.

Drain test
The noise started as soon as the machine started to run the program
No pressure or water/air movement coming out of the main drain pipe
I unscrewed the filter whilst in test and water came gushing out of it after about 1/4 – 1/2 turn

After seeing your above comment and given the above findings are you thinking it’s most likely to be a faulty motor as there’s certainly water in the pump chamber.

Thanks again!

[electrofix]

one faulty motor possible
two faulty motors highly unlikely

there has got ti be something silly going on here and we are missing it

ok you heard air coming out under the sink. do you mean you heard bubbles ?

try taking hose off the sink and put it in a bucket. see if it pumps then

Dave

[Mikey T]

Apologies I probably didn’t explain it very well.

I moved the washing machine from its usual spot to make it easier to test. I put the main drain hose into a sink bowl so I could see what came out (not into a trap) whilst the end of the pipe was sat in the empty sink, I thought I could hear air being pushed out slightly as I filled the drum. Pour a pan full of water into the drum and there was a slight air escape noise from the end of the pipe.

I have tried pumping the unit with the main drain hose effectively in a bucket as the sink I used for the test is lower than the outlet at the top of the machine (It’s one of them old clothes scrubbing sinks)

I’m really at a loss

There’s nothing in the sump hose and it’s spotlessly clean.
The water manually drains fine via the emergency drain pipe.
Water pressure is present in the pump chamber when the noise going.
The main drain hose seems to be clear.
Nothing at all at the end of the pipe when it’s making the noise. As the drain pipe was essentially hanging into the sink I would assume there would be slight movement if the pump was charging and water being blocked somewhere in that pipe?
Both motors show the same results on multimeter.

A real puzzle!

[electrofix]

still got all the sounds of as blocked outlet hose

going to freinds for dinner now will think more later

in the meantime take the outlet hose off. put the pump end to a tap and turn on. then see what flow you get

Dave

[Mikey T]

Thanks Dave, you’ve been an absolute star!

Enjoy your dinner!!!

For the record, the main outlet pipe has been out of the machine and cleaned twice now. I have put irrigation pipe through it and I have connected it directly to a tap and blasted it, I’ve done this both ways – pump side and outlet side, the flow rate seems fine. It’s also had air blown through it and multiple kettles of boiling water.

[kaibart]

Was going to say bosch would have fixed it free under goodwill I you are onl a month out of warranty

[Author]

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