Dyson & Sebo Vacuum Cleaner Repair & Advice Forums

Dyson Models => First Generation "The Ball" Dysons. => Topic started by: Dyson Tech on March 05, 2011, 03:35:10 pm

Title: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Dyson Tech on March 05, 2011, 03:35:10 pm
How to change the brush bar motor on your Dyson DC24 ball:

Many people have asked us for this, so I thought I would put one together (Reading guests will need to make a free account on the forum to see all the images).

Start by removing the cleaner head which is done by removing the c-shaped clip as shown here:

[attachimg=1]

You actually do it from the front, using the little cut out, but I am doing it from the back here to better show you the clip in question. When you have removed the clip, the head unit comes off like so:

[attachimg=2]
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Dyson Tech on March 05, 2011, 03:41:04 pm
Look on the underside, there is a rubber strip. Pull it out and put it to one side (as there are screws underneath it). Your next job is to undo the nine screws with a T10 torx screwdriver. Here are their locations:

[attachimg=1]

Having done that, release the end cap. I use a two pence coin.........

[attachimg=2]

Having removed the end cap, you can now take out the brush roll:

[attachimg=3]


Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Dyson Tech on March 05, 2011, 03:46:56 pm
Now you can split the unit like so:

[attachimg=3]

Now you need to unclip the circuit board. There is a little clip that releases it as shown:

[attachimg=1]

This allows you to split the unit a little further:

[attachimg=2]

Now you can unplug the motor from the circuit board.




Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Dyson Tech on March 05, 2011, 03:53:07 pm
There is now one screw holding the motor in place. It is a T8 torx screw.

[attachimg=1]

Having undone that, the motor comes out. Replacing your motor is simply a reverse sequence of what you have just done. During disassembly and reassembly, be aware of the location of the red "reset" button and make sure it goes back in it's correct position on the side of the head.

We keep not only the motors, but also the screwdrivers. If you want to order a brush roll motor, you can do so from here: >>>DC24 Spare Parts<<< (https://manchestervacs.co.uk/Dyson/DC24-spare-parts.html)

Comments and questions are welcome.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: autovac01 on July 28, 2012, 11:31:02 am
Do you know what voltage the DC24 brushroll motor runs on? so we can test the motor.
Or how can you tell if the motor or the PCB (or both) is at fault?
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Mike Aberdeen on July 30, 2012, 02:41:25 pm
Do you know what voltage the DC24 brushroll motor runs on? so we can test the motor.

240v DC

Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: autovac01 on July 31, 2012, 12:28:31 pm
Thanks for that, we have ordered the motor.

PS. love the ID picture.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Sleaford White on September 14, 2012, 03:21:26 pm
I recently bought a DC24 knowing the brush bar wasn't turning. So, I changed the motor as per your instructions and it still doesn't work  :'(

I can only think it's the PCB. If anyone knows where I can buy a PCB, or can think of anything else what could be wrong PLEASE HELP ME and post on here!

Cheers SW
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on September 14, 2012, 05:20:32 pm
We will likely dig you out a used PCB. We can get new ones as well I think. Give Claire at the shop a call or a mail.

Next time, check the output to the motor is live.  :-X
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Sleaford White on September 20, 2012, 10:57:48 am
Just to let you know the PCB sorted the snag. Thanks very much!!!  ;D
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on September 20, 2012, 05:02:31 pm
Just to let you know the PCB sorted the snag. Thanks very much!!!  ;D

Glad to be of help.  :tiphat:

At least you have a spare brush roll motor in stock now.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVOlga on January 18, 2013, 06:33:13 pm
We have today added the DC24 PCB and reset module to the site.

[attachimg=1]

If you need it you can get one here DC24 Spare Parts (https://manchestervacs.co.uk/Dyson/DC24-spare-parts.html).

Also on our DC24 page, brushrolls have come down in price by £3 and brushroll motors have come down by £5 due to bulk buying discounts we are able to pass along.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVOlga on June 17, 2014, 04:27:08 pm
Soleplates are now available in case you happen to need one while your cleanerhead is in bits.

[attachimg=1]

They are £17.99 from our shop here: DC24 Soleplate (https://manchestervacs.co.uk/Dyson/DC24-soleplate)
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: beko1987 on June 17, 2014, 07:41:58 pm
Very nice!

Going by the dc24 I had that worked, doing this and cleaning the motor off fluff will prolong its life hopefully.

The motor in mine was full of fluff, it must have been making it hot. If you want to go even more a good rinse in brake cleaner will do it!
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Speedy23 on October 06, 2014, 12:02:13 pm
Hi all

Just replaced the brushbar motor on my (old) DC24 - went smoothly enough except:

1. The new motor had a rubber jacket that was slightly larger than the old one, preventing the 2 halves of the cleanerhead assembly from mating properly. Soon rectified by trimming off the excess rubber with a craft knife.
2. The drive boss for the brushbar itself was a different shape on the new motor - rectified by swapping the boss from the old motor  (held on by T8 screw) onto the new motor (boss held on by x-head).

Anyway, up & running now so well pleased.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on October 10, 2014, 04:35:29 pm
1. The new motor had a rubber jacket that was slightly larger than the old one, preventing the 2 halves of the cleanerhead assembly from mating properly. Soon rectified by trimming off the excess rubber with a craft knife.

I believe some are fitted in such a way they need turning around to fit.

2. The drive boss for the brushbar itself was a different shape on the new motor - rectified by swapping the boss from the old motor  (held on by T8 screw) onto the new motor (boss held on by x-head).

That is the usual way, yes. More on that here: DC24: Why some brushrolls don't fit onto new brushroll motors (http://dysonmedic.co.uk/dc24-why-some-brushrolls-dont-fit-onto-new-brushroll-motors/)

Anyway, up & running now so well pleased.

 :thumbsup:
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: Richard747 on October 23, 2014, 09:46:32 am
A successful replacement, thank you.

The rubber jacket on the motor has a slot that the top casing fits into. This was a different shape to the original in that it had a step in it which better matched the moulding on the top casing. Squeezing them together whilst tightening the T10 screws made for a very good fit and low vibration.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on October 24, 2014, 08:52:05 am
Thanks for the feedback, Richard.  :icon_nod:
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: dean_ham on November 03, 2014, 10:47:05 am
Thanks for the excellent guide.

I have a problem with the brush roller on my DC24. It doesn't turn.

I have 240VAC at the input of the PCB board and have 330VDC on the output.

The motor is rated at 240VDC. So why am I having 330VDC at the output of the PCB aswell as the connections to the motor.

What part is faulty? The PCB for not outputting at 240VDC or should the motor be turning even with 330VDC at the connections.

I don't want to order the wrong part from manchestervacs having to find out its the other one :-)

Cheers guys
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MV Claire on November 03, 2014, 12:50:30 pm
If your PCB is outputting 330v DC, the motor will be faulty.

It does sound odd but your readings are correct. The PCB is doing as it should.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: macman on November 03, 2014, 12:53:39 pm
Before you order a new motor, have you pressed the reset button?
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: dean_ham on November 03, 2014, 01:07:41 pm
So it's OK for the PCB to be outputting 330VDC even though the motor is rated for 240VDC.

Ok I'll buy the replacement motor when I get home from work. Thanks!
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on November 03, 2014, 04:06:47 pm
Before you order a new motor, have you pressed the reset button?

If he needed to, the PCB would not be giving a reading.  :reading:

So it's OK for the PCB to be outputting 330VDC even though the motor is rated for 240VDC.

Yes.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: dean_ham on November 03, 2014, 04:21:05 pm
Yes I have tried the reset button with no effect.

I'll order the motor tonight. Thanks.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: dean_ham on November 07, 2014, 06:57:50 pm
Ok the motor for the brush roller is now turning. But the brush roller will not fit into the motor which means I cannot close the latch. Any idea if I have been sent the correct motor?
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on November 07, 2014, 07:07:30 pm
Ok the motor for the brush roller is now turning. But the brush roller will not fit into the motor which means I cannot close the latch. Any idea if I have been sent the correct motor?

Read this: http://dysonmedic.co.uk/dc24-why-some-brushrolls-dont-fit-onto-new-brushroll-motors/
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: dean_ham on November 07, 2014, 08:31:09 pm
Cheers. I just replaced the cog in the end. Took a bit of persuasion to get it off though!  :-)
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: DiddyP on June 07, 2015, 06:19:05 pm
Thank you Speedy 23. Was so proud of myself having successfully changed the brush bar motor on my old trusty DC24 then could not understand why the brush bar itself wold not fit in. Read your post and spotted the difference between the old and new parts. Only took minutes to swap them over and now have my beauty little beast back up to full efficiency. I have attached a pic of the two bits, the new on the left has an extra few mm of plastic which stops thr brush bar fitting. I will always refer to this site if anything else goes wrong in future. [img]
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: tezza999 on November 13, 2015, 10:08:00 am
I need to fit a new motor but cannot see which way round the white and black wires fit on the pcb.
Is it correct in the photo with white nearest the roller or should it be the other way round, so used to plugs and connectors only fitting one way.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on November 13, 2015, 04:21:25 pm
Looks right. Here is another for comparison.

[attachimg=1]
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: beko1987 on November 13, 2015, 04:45:38 pm
Gosh my rug needed a vacuum that day!
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: John7691 on September 30, 2016, 03:25:13 am
OK, all good now. Motor back in and bar rotates well.

One question: How should I re-fix the rubber strip, which was removed about step two in the disassembly?

I was thinking of contact adhesive.  Just pushing it back in doesn't seem like a good enough solution.  What do you do?

Great video though; really easy to do the job with that support.

John

Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on September 30, 2016, 06:35:46 am
Just pushing it back in doesn't seem like a good enough solution. 

It just slides in John. It will feel a bit loose but that is how they are.
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: John7691 on October 31, 2016, 01:31:33 am
I'm still having a problem with retaining the thin rubber strip underneath.  I tried to slide it back in but it works loose.  Pushing it in doesn't work either.

I don't want to stick it with contact adhesive in case I need to remove it again.  What should I do?

BTW, the roller bar works fine now with the new motor.
John

Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: beko1987 on October 31, 2016, 08:45:02 am
It should just push in and 'click' at a few points along the way. It goes in quite deeply It won't slide, you need to get a small flatblade, look for the little tabs that the strip click behind and push!

It's not mission critical though, it makes it work slightly better on hard floors, but you should have the brushroll off on hard floors so as not to burn out the motor too quickly (it relies on the drag of carpet to slow it down to a workable speed). All it's really for is to stop the brushroll flicking bits back if you don't turn it off.

Don't glue it, the day after it all sets hard the PCB will go pop, sods law!

Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: John7691 on October 31, 2016, 10:56:23 pm
I've tried pushing it in but it doesn't stay there.  There doesn't seem to be much holding it in. 

I have two suggestions:

First; leave it off and make sure to turn off the roller when on hard floors - The disadvantage of this solution is that it relies on the correct behaviour from the operator.

Second: Cut the strip into three segments and permanently glue each one to right, left and middle of the screw access holes.  This would leave two small gaps in the rubber but might be better than complete removal.

What is your success rate for putting the strip back in?  Have you operated without it and how long does the motor last in that mode?

John



Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: beko1987 on November 01, 2016, 10:16:17 am
Cutting the strip so the screws are accessible is a good idea, that would solve your issues. I've always got the strip back in tbh, sometimes they need a very firm shove but they always click in eventually.

Not having the strip in won't affect the motor, it's there purely to stop debris being flicked back under the head, many vacuums have this sort of system, and with the brushroll turned off it won't happen anyway as the brushroll won't flick when off.

Cutting and sticking would solve your issue for the least amount of effort though, and as long as the 2 screws are uncovered you should need never to worry about it again!
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: John7691 on November 01, 2016, 06:45:20 pm
OK.  I'll try the cut&Stick method.
Thanks
John
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: mkehat on January 29, 2021, 12:17:31 pm
This tutorial was of great help to me today, here in Israel.
Our head brush assembly was worn out, so we ordered a replacement from US Amazon, attached it, turned on the cleaner, and ... pop goes the over-current circuit breaker. I hadn't imagined the assembly would run on the same local voltage as the cleaner (and in fact the Dyson service representative we spoke to was convinced all head assemblies are identical.
Using your tutorial, I opened up both the old and new assemblies, saw that in fact the motor and circuitry board are localized, and so ported the old motor and circuit board into the new casing, and voila!
Thank you very much!
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on January 30, 2021, 07:09:21 pm
Glad it helped.  :thumbsup:
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: macman on September 28, 2021, 03:48:25 pm
I've got a DC24 in with intermittent brushroll operation, so either faulty brushroll motor, PCB, or yoke loom (i hope not the latter).
What should the output be at the head terminals on the main body please? Am I right in thinking that it's still AC voltage at this stage, and the conversion to 220V DC takes place at the PCB. So 220V AC?
Title: Re: Tutorial: Replacing the Dyson DC24 Brush Bar Motor.
Post by: MVacs on September 30, 2021, 06:29:38 pm
Am I right in thinking that it's still AC voltage at this stage, and the conversion to 220V DC takes place at the PCB. So 220V AC?

That's about the size of it, yes.  :thumbsup: