Self propelled feature does not work. I replaced

Hi there! The self-propelled feature is controlled by a belt. Check the belts on your Hoover Windtunnel by following these quick steps.

1. Recline the handle. Lay the cleaner fat and flip it over to expose nozzle base.
2. Remove the screws attaching the nozzle.
3. Check that the belts are not broken, stretched or damaged.

Replace the belts if they are damaged. Hope this helps!

have you checked the belt
http://www.youtube.com/watch?NR=1&v=wRoqZnZ4h0w&feature=endscreen

Move the carpet height control switch to a higher position if the vacuum is difficult to push. If the setting is too low for the carpet being cleaned, the brushes press against the floor preventing the vacuum from moving easily.Set to a medium-high height setting then check.Slide the "Self-Propel" button to the "ON" position if the cleaner does not self-propel. -----------
The self-propel feature operates only when the cleaner switch and the self propel button are both ON. ---------- Try this settings and check.This should help.Thanks.Helpmech.

Check the plastic part, which the the self propelled cable is attached to. (release the handle, tilt it back. You should be able to see the cable attached by a screw to a black plastic arm.) It is either broken or the cable is lose.

You will need to look @ your owners manual to see where the self propell belt is located i am sure yours is broke and need to replace,- it will not be hard to replace-Lance

Your self propel wire could be broken. Lean the vacuum back like you were using it. If you stand in front of the vacuum look down and to your left. When you move the selp propel button you should see a wire move. If not then it's broken.

Remove the bottom plate and look for broken or loose drive belt to the wheels. Check the wheels for being bound-up with thread, hair and other debris. Make sure that the motor for self-propel runs when turned on.

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Brush won't turn and self propel doesn't work (by 2 users)
Posted by brucelk on May 24, 2008
I have replaced both the v-belt and the larger belt with Hoover brand belts and the brushes still don't turn properly and the self-propel function doesn't work. It seems that when I lower the handle all the way down toward the floor it works fine, but no one can vacuum this way. Is there an adjustment to belts to tighten them up? Otherwise I have to get it in to the only repair shop in town which is an hour's drive.X
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1 Other User Has the Same Problem Comment by chartsell, posted on May 29, 2008 I have replaced both the belts as well. I have tightened the screws as someone else as suggested. The brush still will not turn unless you lower the handle almost to the ground. Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Hoover U6437-900 / U6439-900 Windtunnel Vacuum. It is not so much the belts, the 2 belts are only part of the solution. The average belt change is every 4 to 6 months as a rule and to change them @ the same time. The Hoover Self-Propelled works on when the handle is lower to a comfortable position then the self-propelled drive may just need and adjustment. There is a self-propelled rod that controls the self-propelled feature and it either needs adjustment or replacement or the part that hold it may be broken but either one can be fixed. So feel free to contact your local vacuum cleaner dealer with questions. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://www.hoover.com Telephone
Contact our Customer Service Department at 1.330.499.9499
Monday through Friday
8 a.m. - 7 p.m. EST
Thanks, Don the Vac Man
Go Ahead. Use Us.

If it is a rubber smell, then it could be belts and/or brush roll. If it is an electrical smell, then it could be the motor. Take the belts off and see if it still makes that noise, if it does, then the motor is going bad.

Determine if the wheels spin freely or if there is resistance. Sounds like you need a replacement belt for the drive. If you need help with installation, let me know.