Is anyone familiar with the workings of the powerhead of one of these vacuum cleaners. My powerhead has stopped working, A search shows there are issues with the switch in the handle which I suspect but I just wonder how to power the head to see if it works. There are two pins to power it but I suspect it is capacitor coupled as a resistance test shows no continuity.
I am not confident to feed 240V ac across the pins without knowing if that is all that powers it.
In message snipped-for-privacy@mid.individual.net>, ajh snipped-for-privacy@loampitsfarm.co.uk> writes
Can you not measure the voltage from the feed side? Capacitor coupling sounds a bit unlikely for a domestic cleaner.
I'd guess it's low voltage DC or AC: would be hard to manage 240Vac safely without being careful about insulation etc. Maybe there's an AC transformer?
Taking apart the body and bypassing the switch would tell you.
The cordless Dysons are about 20V DC and I think they send that directly to the motorhead.
Theo
Yeah but it would drop the voltage if the powerhead is a small motor
I was wondering if it was a lower voltage universal motor and the capacitor was the voltage dropper. I dislike dysons but the powerhead is good for getting dog hair off carpets for which the Henry fails.
Later motorhead Dysons use mains voltage motors, possibly dc, don't know about the 05.
If O/C then perhaps the cabling down the hose to the motor unit is U/S?
I checked the resistance across the two pins on the motorhead
manchestervacs have a forum for dysons, but to ask on that
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Any good?
That's the V6, which is a cordless vac. 21.6v battery which they send to the motorhead. The OP's is a mains vac. I can't seem to find any videos of the strip down of a mains motorhead.
Theo
Thanks Theo, neither could I. I can't find anyone with the same dc05 that we could check their motorhead for continuity on. I'm loathe to throw it away when the main motor works.
Done but I guess no one will vet my application as no response received.
Doesn't the motor have a nameplate rating on it ?
The details of the motor will give you some idea how simple the rest of the assembly is (contents of "switch area"). Who knows, it might even have a fuse.
There are actually two motors as potential candidates inside.
"How to replace the Dyson motor on a Dyson DC05 vacuum cleaner"
The motor also has impressively large brush holder cans on the side of the commutator. You can check those to see if one brush suffered excessive wear and the carbon thingy is gone.
Paul
These are the main fan motors, the one I am asking about is the small motor that powers the rotating brush in the head.
I had another go, got better results searching 'brush motor' or 'brush roll motor' not 'motorhead'. This is the DC25 and apparently the motor takes 320-330v DC!
I know nothing about Dysons, but is it possible to spin the motor and attach the meter set to volts? If it measures a voltage, you've got a connection.
DC05 ? does that one have a elec motor powered head?
It's hard to find a picture of the whole appliance.
There is a spinny bit in this picture.
An accessory head would not work, unless there was a power takeoff point somewhere on the exterior of the unit.
Doing a passive head, means a replacement unit should be... dirt-cheap. The asking price seems a bit high (and it is out of stock of course).
I don't think the replacement gubbins on my vac, for the spinny bit, cost nearly that much. And it's the nylon brush that gets beat up on that one, and as part of a kit there is a new belt and spinny bit. The motor doesn't normally need service.
Paul
Your observations are of no use to the OP who clearly has the motorhead version of the DC05.
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