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Wife's cooked the Numatic Henry vacuum - what to check?

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Wonko The Sane
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PostPosted: 16:33 - 23 Dec 2015    Post subject: Wife's cooked the Numatic Henry vacuum - what to check? Reply with quote

Evenin'

the wife has just texted that she thinks she's overheated our Henry vacuum cleaner, she's let it cool, emptied the bag and checked for blockages in the hose but no life in it.

obvious thing is to check the fuse, but anything else I should be checking if that isn't the issue?
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stinkwheel
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PostPosted: 16:38 - 23 Dec 2015    Post subject: Reply with quote

Depending on the age, some of them have a latching switch for the high to low power settings. Always struck me as a tad ropy, especially since it's controlling a power jump from 600 to 1200 watts.

Seems a bit of a weak point compared to the previous 2-position rocker switch.

Check the power cord along its length. Running it on high power with the cable rolled in could cause some nasty induction effects and possible meltiness.
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Wonko The Sane
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PostPosted: 16:42 - 23 Dec 2015    Post subject: Reply with quote

stinkwheel wrote:
Depending on the age, some of them have a latching switch for the high to low power settings. Always struck me as a tad ropy, especially since it's controlling a power jump from 600 to 1200 watts.

Seems a bit of a weak point compared to the previous 2-position rocker switch.

Check the power cord along its length. Running it on high power with the cable rolled in could cause some nasty induction effects and possible meltiness.


It's one where you turn it on with one switch and then there's a red switch you press that springs back and a light comes on for high power

was on high power apparently, doing the stairs so I imagine most of the cable was out but will check when doing fuse
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Rogue_Shadow
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PostPosted: 16:48 - 23 Dec 2015    Post subject: Reply with quote

If it's anything like my VAC hoover you wont get any life out of it for 12 hours.

After clearing up last years Christmas tree, I though nothing of sucking up all the stray tinsel. This blocked the filter inside the hoover Brick Wall

So for the first few weeks after, it would run for about 5-10 minutes before shutting off.
Long story short ...
Whenever it overheats it shut downs and cannot be turned on again for 12 hours, no matter what you do (fuses, ect)

So clear whatever blockages you have and definitely check the filter.
Then try again tomorrow
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stinkwheel
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PostPosted: 17:04 - 23 Dec 2015    Post subject: Reply with quote

Wonko The Sane wrote:


It's one where you turn it on with one switch and then there's a red switch you press that springs back and a light comes on for high power


That's the one I'm on about. I distrust that kind of switch, especially with very high currents going through them.

It would be one of the first things I'd check.

The Henry at my work is 25 years old and still going strong. Actually wore through the metal base-plate on the head so had to fit a new one. It has not had an easy life either, I dread to think of some of the truly awful things it's had to suck up over that time in a mixed veterinary practice.
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chris-red
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PostPosted: 17:24 - 23 Dec 2015    Post subject: Reply with quote

stinkwheel wrote:


That's the one I'm on about. I distrust that kind of switch, especially with very high currents going through them.



Surely it'd be on a relay?
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goto10
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PostPosted: 18:13 - 23 Dec 2015    Post subject: Reply with quote

My wife overheated our [old] Henry a few months ago - I left it for a few hours but it was still dead - it _almost_ went to the tip the next day, but I checked it one final time... and it worked! It's been fine since - so waiting twelve+ hours could have some merit.
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Nobby the Bastard
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PostPosted: 18:33 - 23 Dec 2015    Post subject: Reply with quote

Wife cooked it?

Did the meal suck?
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Wonko The Sane
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PostPosted: 20:16 - 23 Dec 2015    Post subject: Reply with quote

goto10 wrote:
My wife overheated our [old] Henry a few months ago - I left it for a few hours but it was still dead - it _almost_ went to the tip the next day, but I checked it one final time... and it worked! It's been fine since - so waiting twelve+ hours could have some merit.


Seems as though there's a cut out switch of some sort that takes a while to re-set…

bag has now been emptied and hose un-blocked and it seems fine again
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MCN
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PostPosted: 21:04 - 23 Dec 2015    Post subject: Reply with quote

edit: posted before ^^^ Embarassed

If it's been starved of air then the motor overheat protection will/may have tripped.

If it's been hammered several times the thermal cut-out may now be permanently fubar as they can sometimes only handle 'only so-many' cycles to protect from nob-ends who never learn. Smile

They are normally replaceable too.

Or the slip-ring contacts on the cable reel.

Or the motor brushes.

If mine, I'd pull it apart before I chucked it out. Hoovers are normally very fixable beasts, if you don't mind the phaph.

Good luck
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mentalboy
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PostPosted: 23:17 - 23 Dec 2015    Post subject: Reply with quote

MCN wrote:


If mine, I'd pull it apart before I chucked it out. Hoovers are normally very fixable beasts, if you don't mind the phaph.

Good luck


Replaced the motor in my mum's two speed Henry earlier this year, easy enough job and cheaper than buying a new machine. The old motor went black and crispy - never a great sign - thereafter never to work again, house stunk for about two days straight!
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331X2
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PostPosted: 07:27 - 24 Dec 2015    Post subject: Reply with quote

If it's a two speed, bypass the speed control part and wire straight from the on/off switch to the motor. One of the mouth breathers at work cooked one doing something stupid but it just killed the pcb that chops the power.
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P.addy
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P.



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PostPosted: 09:34 - 24 Dec 2015    Post subject: Reply with quote

They have a thermal cut out. I used to work with vacuum cleaners Wink

If you aren't replacing bag/filter and using for extended periods, shit happens.
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