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Poor suction-need to know how to remove & clean filter under canister of Hoover Wind Tunnel Mach 4.7 Twin Chamber System.

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  • sniffles Apr 21, 2008

    This is a bagless. There is no clog anywhere that I can find & have taken almost all screws out at one time. Container filter is washed regularly. Dried completely. Brush turns fine yet needs a bit of cleaning. There is no screw on the bottom filter cover but 2 on the back "wall" .Model # u6766 -900. Thanks for any help. :>Sniffles

  • sniffles Apr 21, 2008

    Thank you for the advice!! You've been very helpful! This is one of the first cyclonic machines( over 8 yrs. old) & I love it! I'd like to keep it going as it is -so far- the ONLY vacuum that actually picks up animal hair off a naughahyde couch!!! Thanks! Sniffles

  • Anonymous Oct 19, 2008

    when I vacumn the dirt goes in the hose part instead of the bagless container. I have a Hoover Elite Bagless.

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I assume this is a Hoover Bagless, if poor suction, the hose or dirt inlet by the brush roll may have a clog. The filter inside the dirt container may need replacement. Some had a screw to take out to remove the cover for the filter, the one under where hte dirt container sits. Alos the belt may be stretch and won't turn the brush roll under load. Having the model number would help.

Posted on Apr 20, 2008

  • Lauren Junge
    Lauren Junge Apr 21, 2008

    I didn't find your model number, but some had a vale that opens and closes depending on if the handle is upright or down for vacuuming. Take the top cover off and the valve is in the dirt inlet and see if anything is broke and that the valve is working when you lower and raise the handle.

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1 Answer

Why is my hoover wind tunnel blowing out side filter and not suctioning


Perhaps dirt or hair is stuck or the full canister needs to be emptied, remove blockage and suction should return.

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Maybe I could replace the belts and brush, but there seem to be too many places to go into to repair a suction problem. I need a repair shop for Hoover Wind Tunnel.


The belt and brush have nothing to do with the suction. The impeller on the motor creates negative pressure which results in a vacuum. ( or suction ) Many newer vacuums have as many as 4 filters. if any become completely clogged, the performance drops to nil. Start at the debris exit and work backwards. As a bagless, pulling the dirt canister out and removing the main filter is a good start. Most filters can be "tapped" clean and some are washable. after pulling out the filter, look where the passage way enters the filter chamber. Is it clogged? There is usually a secondary filter, which actually is set in a previous stage to the filter you just pulled out. Its main purpose if to catch hair, small nails, wire, and other material that could damage the more visible filter. If this filter is clogged then that will explain the loss of suction. Pull it out and clean it. An exhaust filter is located typically above the motor. Its purpose is to prevent fine particles from being blown about. It should be cleaned as well. With the filters clean and the hoses and passage ways clear, you should be good to go.
Good Luck!

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Hello,We have an Hoover Mach 5 Cyclonic vacuum that has no suction. We have cleaned and checked all hoses, belts & filters. Please help us.


With this model, remove the dust tank, and turn it on, check for suction at the lower intake. If you have suction, install the tank and remove hose, and check for suction there. keep following until youn lose it. Then you problem will be between those 2 areas

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I have a Hoover Wind Tunnel Supreme mach 3.9. It


Check the filter above the dirt tank. If you take out the dirt cup and look where in slides into the machine, there is a filter that is probably dirty. It can be cleaned or replaced

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I have no suction with my Hoover Mach 5 vacuum.


I had a similar problem. Two things to try. There is a lock symbol on the canister you need to ling it up with the mark on the top (the silver part has a line on it). It can be assembles 3 different ways. Also I over looked the sticker in the back of the canister compartment indicating a filter in the top of the canister compartment. There is an orange lever there to release the filter. Hope this helps.

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My hoover mach 6 bagless overheats, shuts off for about an 1 hr will run again, all filters are clean, no blocks in hoses, how can i fix this problem


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1 Answer

No suction on Hoover Wind Tunnel.


Greetings from GoVacuum.com,

First this is a common problem on ALL bagless vacuum cleaners. Usually it takes longer then 1 day however.

Is there no suction in the suction hose, or is it not suctioning from the floor?

Most people buy a bagless vacuum once, then return to a bagged one after their bad experience, you are not alone!

Please give me the model number to your Hoover, (found on the bottom or the back of the vacuum on a foil label).

Thanks,

Chris Jones
GoVacuum.com
1-866-468-2288
chris.jones@govacuum.com

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My hoover wind tunnel vaccum has a hepa filter that is supposed to be self cleaning but continues to plug up. it is not easy to get to and takes forever to clean it out so the suction is strong again.


do you have the SELF-CLEANING, rotating HEPA filter?

I just fixed my HEPA filter not rotating!!

It involves taking apart the vacuum HEPA area. All screws are the same size. There are a LOT of 'em. Really straightforward putting it back together too.

ok, once you take the HEPA canister area off the vacuum, careful with the wires! Unplug them from the controller board. You open up the HEPA chamber by removing more screws until you see where the motor that turns the filter is mounted on the side. Remove motor from the green chamber. Note where the washer goes. Once the motor is off, you'll see that the center hub that drives the HEPA filter is rounded out. What I did was jam little bits of aluminum from a pop can into the space between the circle and the square to force the walls back to square. I started by folding a little piece of aluminum over and over so it was about three layers thick. Jammed that in. That wasn't quite enough thickness so I shoved another piece with it. If you can find something that is about 4 times the thickness of a pop can aluminum, that'd probably work too. Slight wedge shape on the tip would help. Any sort of tiny shim.

To test your work, just put a couple of holder screws into the HEPA cannister housing, plug in the cover/switch, plug in the HEPA moter. Turn it on for a few seconds to make sure the filter turns. Then you can add more thickness to the hub or put things back together.

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