Question about Hoover U6634-900 WindTunnel Bagless Upright Vacuum

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Hoover windtunnel u6634-900

I took roller off and cleaned up when i put back together the roller will not spin....the belt appears to be in good condition.....

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Re: hoover windtunnel u6634-900

I have the same problem. I believe, after some inspection, that the mechanism which allows for the circular spin of the brush has failed. Though I'm no mechanic, I believe my girlfriend's long (and beautiful) hair became entangled underneath the gray "end-cap" causing breakage of the rotating mechanism (which I believe is normally housed within the brush under the rectangular "end-cap"...the other "end-cap" piece is circular). Now the brush will spin about 6 rotations but with each spin the gray "end-cap" will extend on its screw rather than spinning freely. I believe my only option is to order another brush. We'll see if it solves the problem.

Posted on Jul 11, 2007

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Hoover windtunnel U5453-900.belt melted put another belt on brush was spinning.Brush spins but not easily.It spins then stops therefore burns the belt.How can i get the brush to spin around better

I would suggest taking the brush bearings at each end off and clean any lint or hair that might be in the ends of the brush. If you have regular ball bearings on your brush, you might need to replace the brush roller if the bearings themselves are tight. Hope this helps!

Apr 05, 2015 | Hoover Vacuums

2 Answers

Hoover UH70935 windtunnel agitator spins like crazy with plate off after cleaning but will not with plate replaced.... what is going on?

If the brush roller was removed, it may have been reinstalled incorrectly, causing it to bind on the bottom plate.

Aug 08, 2014 | Hoover WindTunnel 3 Pro Pet Bagless...

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Hoover U6637-960 the self propel is not not working. When lowering the handle it acts like it would like to work but the roller will not turn. appears to be something to do with the self propel part of the...

This vac has 2 belts. If both self propel and roller not spinning then most likely it is the wide flat belt broken or off. 4 screws on the bottom should gain you access to the belt area. another issue for this model series is a worn pulley on the roller, a new belt when inserted around the roller should be even with the top of the pulley groove.

Apr 17, 2010 | Hoover U6630-900 WindTunnel Bagless...

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I have hoover WindTunnel Self Propelled Vacuum

Greetings from GoVacuum,

Here's a great video repair tutorial that we've put together to try and help you with the repair on your Hoover WindTunnel. I hope that this helps you with your repair. If you found this solution helpful, please rate this repair video by clicking on the 4 Thumbs Up Icons in the top right hand corner of my repair solution. Feel free to email me at if you have any questions about the repair!

Video Repair of Hoover Windtunnel Belt Change

Thank you very much!

Chris Jones

Dec 18, 2009 | Hoover U6437-900 / U6439-900 Windtunnel...

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Hoover windtunnel - brushes spin fine when it's upside down but when it makes contact witht the carpet it stops completely. Is this the belts?

your belt is stretch out get a new belt.but before you put the new belt on clean the motor shaft .theres usually burnt rubber left on the shaft.if you don't clean it off the new belt won't last very can use a fine piece of emery cloth to take the rubber off and back down to the polished finish on the shaft.and while your at it and you have the brush roller off clean it good.check the ends to make sure they turn freely.sometimes carpet strands get wrapped around the ends.those ends come off ,some unscrew and some just pull off

Apr 27, 2009 | Hoover Vacuums

1 Answer

Brush roller on windtunnel won't spin

It sounds like you need to replace the actuator arm or the cable to it. Look for Hoover part 43143046 for a start. I've got a similar problem.

Mar 21, 2009 | Vacuums

1 Answer

Hoover windtunnel vacuum belt

There are 4 screws that you need to remove. The belt lies between the roller and a pin. With a little effort, you just pull out the roller, and the belt will come loose. When putting the new belt, you need to insert the belt into the pin first and then put the other end of the belt onto the roller. Then pull the roller and put it back into its groove. Voila!

Aug 19, 2008 | Vacuums

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