Have a twin chamber windtunnel. Not sure of the model. I am getting very little suction from the hose and just feels like a slight breeze coming for the roller. Barely picking up anything. Have cleaned the dirt chamber, filter, don't know what else to do. Vacumm is lest than a year old.
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Re: getting no suction
Check the hose for a clog, when suction is low, you will usually find a clog in the hose or in the dirt inlet by the brush roll. If this is less then a year old, then it is still in warranty, if you can't figure it out, then take it and proof of purchase to a warranty repair shop.
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It could be clogged at the head or throat, or you might have a hole in the hose. Unplug the hose; if you're getting suction where the hose plugs in then the problem is in the hose or the head. If you're not getting suction where the hose plugs in then the problem is in the body, probably the throat. If the problem is in the hose or head, detach the hose from the head and check for suction at the end of the hose. If there's not suction there, then you've got a clog or a hole. If there is suction there, then you've got a clog in then head.
The bag chamber is not sealing properly.
Turn on the unit again, block up the hose with one hand and feel around the bag door to determine where the suction loss is coming from. It could be near the bottom of the door where one of the tabs have not been inserted properly.
the intake hos at the bottom might be clogged.first take all the filters out and disconnect the hos completely from the vacuum,then check and see if you have suction.the intake hose is the clear looking one at the bottom that wrapps itself up from the base to the backside of the upright.you can use a coat hanger to push out the clog if there is one just bend the tip till its rounded.work it down into the intake hose from the back.after removing the hose and the filters you should have suction.just make sure all the filters get cleaned .you can blow out the hose with a garden hose
you will have to remove the bottom cowling under the vaccum cleaner there are 4 phillips head screws one at each corner when you turn over the vaccum cleaner, take this off and remember how it goes back on. in the area where the hos is there will probably be a clog at that point. remove this and pull hose off and make sure it is not clogged farther up the hose, reinstall and check
If you are getting suction thru the hose and not from the bottom section.. you have a clog somewhere inline with the base area... If you have access to a shop vac ... unplug the Hoover, open up the base and remove the beater bar /belt assembly.. then hold the shop vac nozzle on the point of entry to where the Hoover pulls the debris into the dirt compartment. I am fairly certain you have a clog somewhere in that ducting.. Stubborn ones may need a little motivation.. so you may be able to get an electricians snake or metal coat hanger bent to release the jam..
Hope that helps..
And you are right , regarding Lowes..but don't exclude Home Depot from the same rating..LOL Once the sale is done.. so are they...
Make sure you have a good bag installed in the vacuum and the door is properly in place. Remove the attachment hose from the bag chamber and turn the machine on. You should have good suction coming from the hose inlet. If you don't you have a problem in the bag chamber. Bad bag, door is not on correct, door is defective, dirty secondary filter.
Connect the hose back to the machine and pull the other end out from the bottom, and turn the machine on. You should have good suction there. If you don't you have a clog or hole in the attachment hose and it needs to be unclogged or relplaced.
Reconnect the to the bottom. Flip the mahine upside down. Take the screws out of the bottom plate and remove. Remove the brushroller and belt. Turn the machine on and you should have suction at the inlet coming off the brushhousing. It you don't, then you have a clog in the nozzle hose and it needs to be removed. It will probably be more accessable from the bottom side since that is the way that it entered.
Sometimes a suction problem can be confused with an brush problem. The belts on that machine should be replaced every 6 to 8 months because they will strentch and wear. This is an inexpensive maitainance that will dramatically improve its function. Part Numbers are 38528-035 and 38528-034
http://www.geeksquad.fixya.com/ThreadView.aspx?prdid=40600&thid=562967 Hoover Wind tunnel supreme, loss of suction posted by bazballfan on May 01, 2008 Hello, I purchased two of these models in late 2007 and after changing the bags on each of them I have little to no suction with the vacuum. The hose is fine and I have taken them apart and there is no obstruction in the hose or in the base. These worked so well and now they don't do anything. The bag isn't filling much and the simplest things can’t be vacuumed up Please help me to fix this Hello, I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Hoover U5450-900 Windtunnel Supreme Vacuum Sorry you are having a problem, it sounds lie you have done almost everything, but just in review it could be some of these problems: Belt change – every 4 to 6 months Are the brushes in good shape Where does your suction drop off Is the bottom plate securely on the bottom Are there any gaskets that are broken or leaking Is the bag installed securely Did you check for any clogs or obstructions Is the filter clean Feel free to contact your local vac dealer in your area. 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.comTelephone 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.