You'll need to first diagnosis why these brushes are not spinning. When the SpinScrub brushes on a Hoover SteamVac don't spin, this can be 1 of 3 different things.
In order to diagnosis which one of the problems is causing your problem, here's what you'll need to do.
Step 1. The first and easiest thing you should check is to make sure that that the brush speeed selector knob on the top of the machine is turned on, and is not in the off position. This may sound obvious, but I've had several cutsomers that have come in with this exact problem, only for the brushes to be turned off. Also make sure that the SteamVac's handle is reclined, and not in the upright position. There's a switch inside that shuts the brushes off when the SteamVac is moved into the upright position. If the brushes still are not spinning, move on to step 2.
Step 2. You'll need to remove the SpinScrub brushes from the SteamVac. Turn the machine upside down so that the brushes are facing upwards. There are four clips that hold these brushes in place. You'll need to remove the brushes from the machine by squeezing the four tabs while pulling upwards at the same time. The picture actually only shows the two tabs on the right hand side being squeezed (my left hand was holding the camera, lol), but the tabs on the left hand side are in the exact same location:
Step 3. Once the brushes have been removed, plug the machine in, make sure that the handle is reclined. Look in the SteamVac where the brushes used to be. You should see a hole that is square shaped where the brushes go into.
Turn the machine on, and look to see if this square shaped hole is spinning. If the hole is spinning, this indicates that either the brush block itself is bad, or there maybe something clogged (such as pet hair) in the brushes that's preventing them from spinning. If the square hole is not spinning, this indicates that your internal turbine brush gear has gone bad. Here's a link to a repair that I've written on how to replace the internal brush turbine gear if the square shaped, female receptacle hole is not spinning.
If the square shaped hole is spinning, here's what you may do to see if the brush block is just jammed up with debris, or if the brush block itself is bad and needs to be replaced:
Step 1. I'd say that 60% of the time that I see this problem, the main issue is that the brushes just need to be cleaned. If you have pets in the home, a lot of the time the pet hair will just be lodged inside the brushes, will prevent them from spinning. Use a pressurized water hose with spray nozzle is ideal) and spray each brush with water to dislodge any pet hair. You should be able to get these brushes spinning when you spray them. Spray each brush until the brushes are spinning pretty fast. Re-insert the brushes into the machine, and test to see if the cleaning has fixed your problem.
you should look at the brush stem that goes into the turbine inside the machine. This is the green pole pictured in middle of the brush block. Examine this pole to determine if the top of it has broken off. It should exactly how the picture shows it. Make sure that the plastic has not broken. If the pole has broken, you will simply need to replace the brush block.
It can really only be one of these three things that are causing your brushes not turn. Here are links to all of the products that possibly need to purchased (if the brushes weren't just clogged) on our website for the model that you listed this repair under, the Hoover F7425-900.
- Hoover Brush Turbine Gear Assembly Part 43191009
- Hoover Brush Block SpinScrub 6 Brushes For F7425-900, Part #
I hope that this helped you figure out the problem. If you have any follow up questions, please use the Clarification Request form here on Fixya and I'll be more then happy to follow up with you and help you out. If you found this helpful, may you kindly please rate my repair helpful by clicking the thumbs up icons in the top right hand corner of the repair? This is really what keeps Fixya repair experts coming back to give free repair advice, and helps Fixya users continue to get the free replies without having to pay for answers. It's greatly appreciated.