I have the same problem with my Hoover Steamvac brushes not turning, but I feel plenty of suction near the circular intake. Does that mean that my turbine is fine? Could it be a belt instead?
My problem was that the metal "transmission" had it's upper and lower bearings frozen. I sprayed WD-40 and let it sit for awhile. I then proceeded to work it free. It was quite rusty inside the cover plate, leading me to believe that water somehow entered the housing or they used a water based lubricant from the factory. Water based lubricants are generally cheaper than oil based so I'm tending to lead that way. The "transmission" is the metal rod with hypoid type gear in it that turns the 2 plastic gears. It is a press fit to the turbine wheel, so twisting a flat blade screwdriver under the turbine wheel will remove it. Make sure the lower bearing is free to turn easily. I also used some anti-sieze compound on the gears.
I too have the same problem and the unit is only a couple of years old, with moderate use. I had to take the hood off and work my way down to the gears that drive the square hole. Of course Murphy's law would have it that my WD-40 can is fresh out! Once I have the gears cleaned and freshly packed with grease this thing should be good to go.
The brushes on my hoover would not turn either but had plenty of suction,the square hole would not even turn,so my husband took the the screws out and when he got to the black motor ,he took out the screws and foung that the plastic gear was jammed so he put WD 40 on it and pulled it back in place and now it works great.Everything inside is plastic,so check this first....before spending any money on it...Jeanie777...I posted this as my problem also,but my husband fixed it.
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Re: Brushes not turning, but suction okay?
There is no belt, with the brush block removed, turn unit on, watch the square hole to see if it is turning, if not, then the turbine isn't running. Either it is clogged up or just needs to be replaced.
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Take the brush block out, make sure it turns easily. If it does that is ok and obviously the turbine is too. Suction would be your problem next. Check the tank to be sure it's sealing correctly. The clear access panel on the front of the hood can also leak or have blockage in it. It is the screen behind the clear panel below the brush speed control. There really isn't much else to cause you problems with the brushes. It's either suction or mechanical.
The brushes are powered by air suction from the motor. At the heart of this complicated system are roller bearings. When one fails the system fails. This is not one of the parts that Hoover thinks is needed on it's parts site so I've haven't found a way to repair this.
The Brushes not spinning is most likely is caused by seized bearings in the turbine, requiring shop service (easy fix). The suction issue can be caused by the standpipe seal missing or lower recovery tank not on properly, on some models missing front panel. I would need more exact model info to assist further.
The brushes are driven by air flow (suction). the most likely problem is with the turbine. This part can be replaced or repaired. If under warranty, take it tin for service, otherwise you will void any warranty.
http://geeksquad.fixya.com/ThreadView.aspx?prdid=41079&thid=729141 Problem sucking up water Pos Problem sucking up water Ted by raybrower on Jul 01, 2008 Have a Hoover SteamVac with 5 brushes and it will not suck up any water and I have cleaned all the brushes but it still wont pick up any water Hello, I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Part of the problem is with your holding tank, there is a rubber gasket that seals the unit to pup the water and if that gasket is cracked or missing it will not pup. Also there could be something wrong with the suction motor or the Hoover SteamVac may be clogged and will not pup the water, if there is a way to say back track the suction then follow the suction back to the suction motor and if you see a clog – remove it. Otherwise you may have a bad suction motor and it would need replacing as a last resort. If the Hoover SteamVac is less than one year factory warranty it would be covered under the Hoover factory warranty and then feel free to contact the local Hoover Factory Authorized Dealer in your area, so call the cust serv @ Hoover and they can direct you to a dealer that would cover this under warranty. So, 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.
Have you checked the lint screen? Your brushes are air driven if it's a Hoover Spin Scrub.
There is a clear cover on the left side, when facinf from front. Remove this cover, about 3x5 inches and tapered, and clean the screen. Some units have a red or white screen that you can pull out from the bottom of the unit, left side just behind the brush block. Clean the screen then reinstall. Check that recovery tank is properly positioned- lack of seal means less suction which translates to brush block not turning.
The brushes spin by virtue of an air driven turbine. This turbine uses a little of the motor suction to turn a large fan which turns the brushes. If you look behind the clear glass window on the front right hand side of the machine, you will see a screen which acts as a filter to keep debris out of the turbine. If this screen becomes clogged, it will affect the flow of air to the turbine and the brushes will slow down or stop all togeather.
Also, if the lid of the recovery tank is not on correctly, the suction will be compromised and the brushes will not turn and the machine will not pick up water off the carpet.