Question about Numatic Henry Bagged Canister Vacuum

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Electrical Burning Smell from Henry HVR200 Vacuum Cleaner

1. I have a Henry HVR 200 Vacuum cleaner (has two switches - on/off switch and a hi/lo switch).
2. Got the Henry about 2 years.
3. Yesterday when using it started to produce a smell - an electrical burning smell.
4. Other than the smell, there is no other symptoms - it sounds the same and has a decent ****.
5. Thinking it was the cardon-brushes, these were checked and are still in good condition (did not fully remove the brushes from the motor - but saw that each had at least 7 mm of carbon left on them).
6. Re-assembled the Henry and it still gives the electrical burning smell.
7. The smell is more noticeable when the hi/lo switch is on hi.
8. Is a new motor needed?
Best, Simon

Posted by siprog64 on

  • 1 more comment 
  • siprog64 Mar 01, 2009

    Hi & thanks for your reply.
    When I dismantaled Henry and checked the motor it appeared to be in good condition. The commutator did not look scared or worned - just black from where the brushes touch the commutator. I like your idea of changing the brushes as this should be easy to do - do you recommend any supplier?
    As regards to bag, most of the time is does not have a bag. But If I had my way it would have a bag.
    Regards Simon.

  • Anonymous Mar 31, 2014

    It has an on off switch and a high/low switch. I believe the smell started after I changed the vacuum to high. I also changed the brush to the hard floor setting..

  • Adam
    Adam May 07, 2014

    Hi i am also having problems with my Henry it started making noises from the motor then smoking and now every time I try to switch it on it trips the electric out. Could this be the carbon bushes need replacing or something more thanks Adam



2 Answers

Philip Gaut

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Hi! Highly unlikely that you need a new motor.  Highly likely that you need new carbon brushes.  The smell is caused by excessive sparking between the worn brushes and the copper commutator segments.  Most carbon brushes (and from memory I suspect this includes Henry's) have a copper wire buried in their last few millimeters, and you really need to change them before that becomes exposed.   The longer you run it like this, the more likely you are to damage the commutator, so change them sooner rather than later.  When you change the brushes, you can smooth off the commutator with very fine abrasive paper (the objective is to smooth it, not scratch it!), and then blow all the dust away (or **** it away if you have another vac, of course).  Incidentally, you don't say if you are using a paper bag in your Henry. Some people, because the top-hat filter is so good, try to manage without a bag.  This is false economy!  You should always use a bag. I hope this helps! I value feedback, so please remember to rate this response.

Posted on Mar 01, 2009

  • Philip Gaut Mar 01, 2009

    Hello again, 

    Thanks for your feedback, I'm glad you found my comments helpful. I'm amused to see how the site censor has dealt with the word "s u c k"!!!
    I repeat that going bagless is false economy. By which I mean that more dust than necessary will get through to the motor and cause avoidable wear.
    As for carbon brush suppliers, I think I'm not allowed to advertise but I notice that when I read our exchange on screen there are at least two Henry spares websites advertising in the box on the right side of the window. You don't say which country you're in, so these may or may not be helpful.




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Mine did this. It turned out to be the switch. I bought a new one online for a few quid & fitted it myself. Reasonably simple to do. It's worth taking it apart & seeing if there's any melted areas on the switch.

Posted on Mar 30, 2009


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