The World's #1 Vacuum Cleaner Advice, Repair, Discussion & Information Forum

Author Topic: Is this right? Testing DC24 Brushbar motor  (Read 3596 times)

Offline Burton

  • Member
  • Posts: 14
  • Country: 00
    • Vacuum Workshop
Is this right? Testing DC24 Brushbar motor
« on: January 25, 2016, 01:41:20 PM »
Hi everyone,

It's been awhile since I did electronics at school and just wanted to check that I had the right idea here.
To check that the voltage the brushbar motor is receiving is 240v DC i should have the
Vacuum turned on -> Brushbar motor connected into the pcb and check like so?
ila_rendered

Online beko1987

  • Member
  • Posts: 4779
  • Country: gb
  • Gender: Male
  • Let's take it apart!
    • My blog
Re: Is this right? Testing DC24 Brushbar motor
« Reply #1 on: January 25, 2016, 04:27:11 PM »
I'd connect the multimeter to the pins on the PCB where the motor plugs into first, check for the juice there.

Dont forget to have the machine reclined too, as the brushsroll turns off via a microswitch when upright.
Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Online MVacs

  • Administrator
  • Member
  • *****
  • Posts: 5840
  • Country: gb
  • Gender: Male
    • Manchester Vacs -- The Independent Dyson Specialists
Re: Is this right? Testing DC24 Brushbar motor
« Reply #2 on: January 25, 2016, 06:27:17 PM »
The brushbar motor will receive about 330v DC. Despite what the label on it says.

Offline Fhtur

  • Member
  • Posts: 1
Re: Is this right? Testing DC24 Brushbar motor
« Reply #3 on: February 06, 2021, 03:06:47 PM »
Hi. I'm now to this forum and i have searched for info on the DC24 head motor and PCB but I'm still unsure which is faulty. I now have 5 PCBs from old machines and all have between 305v and 325v output to the motor but only one of them actually works the one motor I know is good. I assume the other 4 are faulty but just seems strange when the voltage appears ok. Also I have a few head motors and all test between 200 & 400 ohms. The resistance varies as I move the motor round. Does all this seem ok as I don't want to blow any more PCBs? Thanks

Online MVacs

  • Administrator
  • Member
  • *****
  • Posts: 5840
  • Country: gb
  • Gender: Male
    • Manchester Vacs -- The Independent Dyson Specialists
Re: Is this right? Testing DC24 Brushbar motor
« Reply #4 on: February 08, 2021, 02:44:22 PM »
I now have 5 PCBs from old machines and all have between 305v and 325v output to the motor but only one of them actually works the one motor I know is good.

Check you are still getting full voltage at the motor per the first post above.

The resistance varies as I move the motor round. Does all this seem ok as I don't want to blow any more PCBs?

That is normal.


 

 

FFP2 N95 Face Masks

 

 

Dyson Spare Parts

 

 

Freestanding Dyson Cordless Vacuum Stand

 

 

Buy a Dyson DC04 Wand Handle

 

 

 

 

Sebo Vacuum Cleaners

 

 

Instagram

Dyson Spares, Parts, Advice   Follow us on Twitter

Manchester Vacson Google+

Manchester Vacs on Instagram

Registration