I have a Hoover F7431-900 with a problem. It continues to put out solution in forward and backward mode no matter what setting it is on. Even when it is on and locked in the upright position, the solution sprays out. It has great suction though. Can I fix this problem myself? If so, how?
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To check the water lines you have to take the top housing off, you may have a water line that came loose. It it is leaking from just under the water tank, there may be a line unhooked there. Check the seal that the tank sits on, it may have to replaced, the other is the diaphram that the tank sits on isn't closing alowing the water to keep flowing.
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When you put the tank on it connects with the unit and opens the valve on the bottom of the tank to allow the water to flow check for debris hair etc around the connection, it is possible the seal itself is worn or bad and needs replacement but I think the trigger only lets air in the tank so the water will flow out by gravity, I'm not positive on this but mine works that way.
Hi there! To prepare for cleaning, put the solution and water in the top tank. While cleaning, all the dirty water gets sucked into the bottom tank. To clean squeeze trigger to release cleaning solution and slowly push carpet cleaner forward, this equals one wet stroke. Continue to squeeze trigger and slowly pull carpet cleaner back toward you (second wet stroke). Release trigger and slowly push carpet cleaner forward over area just sprayed with solution (dry stroke). Then slowly pull carpet cleaner back toward you without squeezing trigger (dry stroke). To avoid saturating the carpet don't do more than 4 wet strokes over one area. Always end with dry strokes. Here is a link to view the instruction manual if needed. http://hoover.com/file/604/
You should have the vacuum set to Wash/Rinse for all steps in cleaning. Press the trigger to release the cleaning solution and push the vacuum forward. With the trigger still pressed, bring the vacuum back towards you). Then release the trigger and again move the vacuum forward and then back. Repeat the "dry" strokes until the dirty water enters the dirty water tank. Watch the water going through the dirty water tank lid. Empty the dirty water tank if the suction fails or the tone changes. Do more dry strokes after cleaning the entire surface until you do not see more water entering the dirty water tank.
You probably have a solenoid valve which has failed and will not open. This will require replacement of the valve. For temporary use you can mix a soap solution and put it in the rinse tank. The correct mix is 5 ounces of Hoover shampoo to a gallon of hot water.
The Hoover web site has all the owner's manuals posted for download, just go to this site and put the model number in, the next page will have a link to a pdf copy of the manual! http://www.hoover.com/CustomerService/Manuals/Default.aspx