Question about Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum

2 Answers

Brush won't spin when position of handle changes

When we release the handle and let it fall all the way back, the vacuum brush rotates as normal. When we lift the handle to the normal vacuuming position, the brush stops rotating or rotates a little bit and then stops. There isn't as much rotational force when the handle is moved to the normal vacuuming position.

The clutch roller seems to move freely and is in the correct position when the handle is released.

We have replaced both belts already and that did not solve the problem.

Any thoughts?

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 126 Answers
Re: Brush won't spin when position of handle changes

The belt for this machine is very specific and only one size fits. It is not uncommon for vac shops to sell the wrong belt because the proper belt is not available from normal supply houses, so they will substitute something they think will work.

Also, assuming you do have the right belt, check the tension arm that drops down on the v-belt when the handle is brought back. This arm has a wheel/bearing with a plastic "tire" or trim that rolls on the belt to tighten it. Sometimes, this tire cracks and falls off and then the remaining bearing won't have the necessary tension to tighten up the belt.

Posted on Jan 27, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Brush won't spin when position of handle changes

The vacuum cleaner is designed for the brush to rotate only when the handle is released for safety resons. I have two of these vacuums and they both operate this way.

Posted on Feb 17, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Brush will not spin

The brush will not spin in the handle is in the upright position. Release the handle and see if it works. If you have a carpet floor switch you might want to check that and make sure it is on carpet.

Sep 09, 2014 | Eureka Vacuums

1 Answer

My brush bar keeps falling down. We replaced motor but now the brushes don't spin.

Hi! If you've replaced the turbine & gear assembly and the brushes are still not spinning, a replacement brush-block assembly may be needed. The brushes counter rotate and need each other to spin. If a single brush is falling out, the brush assembly is broken. If the whole brush assembly keeps falling out, the drive pin shaft may be damaged. To order a replacement brush-block follow the link below.

Search Results

Hope this helps!

Jun 03, 2014 | Hoover F7425-900 SteamVac V2 Widepath...

1 Answer

Left hand brush won't spin

sounds like its sticking and the sharp turn releases the catch properly try lubricating it with either oil or wd40 should ease it hopefully this helps

Apr 01, 2014 | Hoover Floormax F5300 Upright Vacuum

1 Answer


Hi Janet. Thank you for asking this question. Your vacuum wasn't designed with a brush on/off switch so having the brush continually spin is normal for your vacuum.

Jun 29, 2013 | Bissell 3576 CleanView II Bagless Upright...

2 Answers

The brush will not rotate. I thought this was a direct drive system.

Note: The brush will not rotate when the machine is locked in the upright position, because an internal micro-switch turns the brush motor off.

- Check the belt through the clear brush cover. If this appears damaged or broken, please take your machine to a local BISSELL Authorized Service Center to have this replaced. If the belt is intact, please continue checking the following:
- Ensure both power switches are turned on when you check for brush rotation.
- Unplug the power cord and remove the handle completely. Slide handle back into the lower section of handle, ensuring the screw is in tight. If the handle is not aligned properly, this will affect the power of the brush motor.
- Look for debris wrapped around the brush (i.e. string, hair, fibers, etc.). When the machine is unplugged, cut away any visible hair, fibers or debris from the brush roller. This brush is NOT removable from the machine.
- If something has become lodged in the foot and the brush shuts off, turn off the vacuum and unplug this from the outlet. You can now remove the obstruction. The brush will automatically reset when the vacuum is plugged in and turned back on.

If you continue to experience difficulty with this, please take your machine to the following Service Center in your area. The warranty on this machine is five years.

Aug 12, 2010 | Bissell Healthy Home HEPA Bagless Upright...

1 Answer

The rotator brush stopped turning. it turns fine

The brush roll will only spin when your handle is not in the locked upright position, once the handle goes upright - the brushroll de-activates

Dec 22, 2009 | Kenmore Progressive Bagless Upright with...

1 Answer

When I turn on mt dyson is sounds normal. once I

With the DC14 in its upright position, and looking from the back, there is an access hatch just to the right and bottom of the dust canister. Remove this and check for any obstruction. With the hatch still removed, tilt the handle back (as if vacuuming a floor), and you should spot that the mechanism in to which the access hatch fits changes over from one hole to another. This is how suction is transfreered from the telescopic arm to the brush bar when the unit is taken out of the upright position.
With the handle tilted back, the hole you can see is one end of a flexible pipe that leads to the brush bar. Check for any blockage and/or foriegn objects. If there is no obvious problem, you'll need to check the other end of the pipe. You can do this by removing the toe plate on the bottom of the brush bar area. The plate is held by 3 or 4 half turn fasterners - a 5 pence piece is ideal for undoing these.

If still no joy, the only other thing it might be is that the brush bar isnt spinning - this isnt actually lack of suction, but without brush rotation any upright hoover is far less effieicnt at picking up bits from the floor. Brushes not spinning on a DC14 is quiet a difficult thing to fix on a DC14 as there are two separate rubber belts, one of which is hidden under a plastic cover. There is also a clutch mechanism between the belts that can cause problems some times.

Oct 09, 2009 | Dyson DC14 Animal Bagless Upright Cyclonic...

1 Answer

Install New Belt

Lift the headlight and rotate the thumb dial to release the carpet head. It will spin to the side. Rotate the square handle at the front of the vac fully to the left.
Remove the carpet head and open it from the bottom side. Observe which side had a little block below the LED belt indicator when you rotate the brush. The brush must go back in this way. The blocks at the end of the brush are color coded for height adjustment. Remove the brush, slide a genuine belt onto the center and close the bottom cover of the housing. make sure the brush spins freely, now look into the belt opening, round hole at the side. Using the square dial at the front of the head, rotate the hook into the belt to twist the belt and open it for installation onto the motor shaft.
Reinstall the head onto the vac, using the thumb dial to lock into place and rotate the square handle again . This will release the belt tension onto the motor shaft. Raise the vac up two knotches with the pedal before lower onto the carpet.

Sep 11, 2009 | Kirby Ultimate G Bagged Upright Vacuum

2 Answers

Kenmore Beltless Vacuum brush will not spin. Everything else works.

there is a reset button on the side of the lower base of the machine, plug in the unit turn on the switch to the brush and vacuum are both engaged hit the reset button, remember the roller will not engage when the handle is in the upright position, release the handle and your ready to go.let me know if that helped you . thanks renevacdoc

Jul 23, 2009 | Vacuums

1 Answer

No suction

Are you saying that the motor runs but there is no brush rotation ?

If yes then firstly switch machine on then when you pull handle back as if to vacuum the carpet the clutch drive dial must turn to (drive, start, on,) position if it is stuck on (park, off. Stop, p,) position rotate it to drive etc as you pull handle back providing the clutch & both drive belts are ok the brush will spin.
The clutch drive dial knob is situated looking from the front of machine lower left hand side approx 50mm or 2” in diameter.

Please do this test & let me know results
Regards Chris..

Sep 28, 2008 | Dyson DC07 Animal Bagless Upright Cyclonic...

Not finding what you are looking for?
Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum Logo

493 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hoover Vacuums Experts


Level 3 Expert

18258 Answers

Roger Potts

Level 3 Expert

694 Answers

Ryan S
Ryan S

Level 2 Expert

328 Answers

Are you a Hoover Vacuum Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides