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Author Topic: DC24- Testing pcb and motor??  (Read 4378 times)

Offline tickz

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DC24- Testing pcb and motor??
« on: May 27, 2013, 05:24:30 PM »
Hi All

I have searched but cant find a definitive answer! so im just gonna ask before I order a new motor..How to I correctly check the motor and pcb for fault??



the brushbar doesnt work, I have stripped down using the walkthough sticky (thanks  :thumbsup:) and I want to test the motor and pcb and see whats at fault. (i have triple checked the red reset switch)
im getting 334VDC from the motor output on the pcb- does this sound correct??

what resistance should I have over the motor?? I seem to have an open circuit?

thanks in advance

 :thumbsup:

Online MVacs

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Re: DC24- Testing pcb and motor??
« Reply #1 on: May 27, 2013, 08:05:47 PM »
334vDC sounds high. 234 might be more normal. This is a UK machine?

I'd be looking for 400Ω across the motor and 725Ω across an assembled cleaner head terminals on a 220-240v machine. 

Offline tickz

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Re: DC24- Testing pcb and motor??
« Reply #2 on: May 29, 2013, 11:57:20 PM »
Hi thanks

yep double checked its 333vdc from motor output on pcb? this is a uk machine.

and the motor is open circuit (infinite)??

its got 333vdc with the motor disconnected. could be both??

thanks

Online MVacs

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Re: DC24- Testing pcb and motor??
« Reply #3 on: May 31, 2013, 03:12:57 AM »
We have occasionally found the PCB can take out the motor.

Sounds to me like both.

Offline spikey1509

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Re: DC24- Testing pcb and motor??
« Reply #4 on: June 06, 2013, 11:43:17 AM »
Hi All,

   Is it possible for the motor to take out the PCB board as well or is it more likely to be the motor?.

Jason

Offline Dyson Tech

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Re: DC24- Testing pcb and motor??
« Reply #5 on: June 06, 2013, 04:18:41 PM »
We change (and sell) probably ten or twenty times more motors than PCB's if that helps.
Manchester Vacs Dyson Engineer
We expect that by seeking advice here, you are competent enough to be able to make any electrical installations safely and in a safe and legal manner in your jurisdiction. If you are in any doubt whatsoever, do consult an electrician. You accept/implement any advice you read at this site at your own risk. #dysonexperts

Offline spikey1509

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Re: DC24- Testing pcb and motor??
« Reply #6 on: June 07, 2013, 01:53:12 PM »
 ;)Thanx for that, I've ordered a DC24 brush bar motor, so hopefully that will do the trick, otherwise it'll be the board. I'll let you know how I get on.

Kind Regards,

 :tiphat:Jason :tiphat:


 

 

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