Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum\015 Tried to switch hard/carpet knob on 6425-900 when handle was down –> black plastic knob broke off. But the metal post is still sticking up and works if I slide it for hard floor or carpet. I got a new knob to put on, but how does it go on? Metal post wants to slide down and disappear into housing if I try to push knob on. Help!\015

How to Identify and Fix Common Vacuum Problems ?

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Should the brush not rotate freely there may be debris tangled around the ends of the brush, carefully remove any obstructions or replace the brush with a new one. We recommend that you fit a new belt and brush once per year to keep your Reactive vacuum working efficiently.
1. Motorized Brush Head. Sometimes called the “power nozzle,” this large attachment has a rotating brush to clean carpets more like an upright.
The brush roll or its bearings may be clogged with hair, threads or dirt. Make sure they are clean and the roll spins. The belt may also have slipped because it was loose. Check the fit of the new belt when it is installed.
Check for a plugged hose:

Plugged vacuum hoses are sometimes the reason for a loss in suction. Hoses can get clogged with hair, dust bunnies, string, or anything else that can`t pass through the other end of the hose. Airways inside the machine should be looked at as well. Wherever there is an air passage, check it.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My Hoover Windtunnel Mach 6.9 brush roller quit working. Upon investigating I found that the idler arm pulley was broken so I managed to replace that. Before putting the cover back on I see the control knob for the roller brush moves a plastic piece left or right to activate/deactivate the brush roller. I don't know where this plastic piece connects. It appears to me that the idler are when raised creates tension on the belt which drives the roller. I'm at a loss trying to figure ou

Dyson DC07 brush roller is worn and won’t make contact with the carpet anymore. I need to replace the brush roller but don’t know how…HELP?
ANSWER : Buy the brush over the web etc..
.To take the brush out
.1 – Take the outer covering – uese a penny to turn the yellow srews
.2 – Slide the black brush out from the assembly – Try the non belt side first.
.3- Slide the belt out of the brush.
.4 – Take brush out – Replace it with new one.

I have 2 Hoover Wind Tunnel-self propelled bagged vacuums-U6433-900 model.The roller bar does not agitate, the self propelled feature does not work and, in general, the vacuum is not performing well. I have replaced the roller bar, the v belt and the wide belt. The filters have been replaced and it has a new bag. I have had both of these since 2004 and they were fairly expensive $200 each) but if the repairs are prohibitive, I might as well get new vacuums. Suggestions? I just spent $100 for bel
ANSWER : The Hoover WindTunnel self propelled is a machine that we see in our retail stores (Vacuums Unlimited) constantly. The benefit of having a supposed “self-propelled” machine wears of quickly after the numerous time you will need to take this machine in for repair.

It’s unfortunate you’ve had to spend so much money already on repairing this machine. I know you’ve said you’ve already replace the belts and filters, but if you want you can check out a video we made on repairing the Hoover Windtunnel.


If you are looking for a reliable upright, at GoVacuum we’d recommend the Sebo X4 upright (http://www.govacuum.com/seauxseupvac.html). The machine is incredibly reliable and easy to maintain. Thus far, we haven’t had one warranty repairs come through our doors. The machine itself has a lifelong warranty on the belt because the machine automatically shuts off the motor if an obstruction is detected, preventing any undue stress on the motor or belt.

I have a model # 880 Royal upright that the brush roller ends are bad. Can I get replacements for these? They have the 1/2 in. square ends. What about replacement for the whole roller assembly. The brushes are fairly well worn. Thanks, Arthur Summers
ANSWER : The below site sells the rollers for some models. I’m not sure about yours. The second one, part number R-673273, may fit. Check your brush for a part number.
.There’s also one available at the next site.
.I recommend replacing the belt and cleaning the inside of the powerhead while it’s apart.

I am trying to replace my vacuum belt and can not get the roller brush to fit back into the slot after I put the belt back onto one end of the roller brush. Am I reassembling the belt and roller brush the right way?
ANSWER : If its a hoover or bissell, one side of the brushroll is slotted and slides. if its a eureka the hexagon end caps must be properly aligned, they go in at an angle. if its none of these provide me with the make and model # and i will give you a detailed description on installation. let me know if you need more help.

My bissell 6590 works fine with hose attachment. Motor shaft turns when belt and roller are off. When belt and roller are on it’s noisy and smelly. Now one end of the roller actually melted in the holding slot. Do these rollers wear out like this or should I be looking for another problem.
ANSWER : Replace the roller,belt and before instalation clean motor shaft where belt rolls. you can turn on the vacumm and using a knife scrape the motor shaft from the black dirt.

My vacume is less than 6 months old. I’ve gone through & replaced 4 belts. Now I realize the roller is not rolling which is causing the belts to break. The roller is free of all hair and debree. What should I do to fit the roller?
ANSWER : Very strong chance the end caps, made out of rubber could be a manufacturer defect. Many parts on vacs are made by different sources.

Bissell Lift OfF Brush Roller Stops Rotating
ANSWER : They make the worst machines, the rollers are cheap and they make it so you cant take them apart to clean them. You don’t want a dyson either, they aren’t any better for pets. With all that hardwood floors you should get a good canister vacuum, sebo and miele are the best.