Question about Hoover S3765-040 WindTunnel Bagless Canister Vacuum

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Has diminished sucking pressure. Have new, clean filter, no blockage anywhere. When carpet attachment added, lights flash as if filter dirty. Hose will not pick up anything. Hose is clean. 2 years old; replaced 5 year old wind tunnel lost in hurricane Ike. Did I make a mistake as I loved my old Vac.? This was the first thing I bought after we lost everything. It has given me nothing but trouble.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: steam vac will not pick up dirty water

My Hoover Steamvac problem isn't with the bruches--it's with the suction. Dirty soapy water stays in the carpet instead of being returned to one of the holding tanks.

Posted on Apr 19, 2008

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Agent Don
  • 310 Answers

SOURCE: Hoover wind tunnel self propelled U6617-960

http://www.geeksquad.fixya.com/ThreadView.aspx?prdid=40485&thid=557365
Hoover Windtunnel self propelled U6617-960
Posted by srkelly on Apr 29, 2008
The vacuum has no suction at the floor. I have checked the hose, and no blockage. When I try to use the attachments, still no suction. What could be the problem.

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure.
Hoover U6437-900 / U6439-900 Windtunnel upright Vacuum
You definitely have a clod between the tube by the brushroll area and the attachment hose and the best way is to take a wire hanger and make a little hook on the end to see if there is a clog, the clog is closer to the fan area and anything big would clog up the area sideways and
-- you may have to remove the top cover to see if there is a clog and to better get @ it from the top. Another suggestion is to do a belt change whether you have one or 2 belts on the vacuum and to change the belts @ the same time every 4 to 6 months. Also, check you owner’s manual under trouble shooting to see if there is something else, other wise that is what I think is the problem. 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

Don – The Vac Man
Go Ahead. Use Us.

Posted on Apr 29, 2008

reddevil6
  • 1673 Answers

SOURCE: Hoover Dirt Finder (light) not working

Good be a bad sensor, but if less then a year old, it is under warranty. I would take it in to a warranty repair shop and have them fix it.

Posted on May 13, 2008

  • 97 Answers

SOURCE: Hoover wind tunnel cyclonic U5780900

Well, the V belt is normally fairly slack until the handle is dropped below 45 degrees, which is when the belt tensioner assembly drops into place. If turning the brushroll by hand when the vacuum is in this position fails to rotate the self propel pulley, the tensioner is not functioning properly and will need to be replaced.
Also ensure that the brushroll can spin freely by hand, as these have a tendency to melt at the ends and seize the brushroll. I have also seen the groove that the v belt fits into melt itself out of round, which can cause the same symptom as you're describing.
Keep in mind as well that while the rubber belt may appear to be ok, it does have to be replaced every 3-6 months whether it breaks or not. Even though it hasn't broken, if you were to hold it up against a new belt, you would see that the old one has stretched significantly: which can decrease the machine's ability to rotate the self-propel transmission pulley and, in turn; the brushroll.

Feel free to contact me with any further questions.

-R


Posted on Oct 02, 2008

  • 50 Answers

SOURCE: no suction

I have found more vacuums on the way to the dump because they were full. Check. Is it full?
If not the air way is clogged.

Posted on May 29, 2009

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If your DC40 isn't picking up as well as it should be, it's likely there will be a blockage that you may have missed. The most effective way to check for this is to follow the steps shown in our online Support guide: http://www.dyson.co.uk/support/dc40/dc40-multi-floor-complete/my-machine-is-not-working/machine-not-sucking-up-well/both-checks-checking-wand-and-hose-step-1

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There could be several problems that would cause the dirty water tank to be empty after you've cleaned the carpets. I'll try and walk you through each to help you diagnosis the problem.

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