20 Most Recent Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum - Page 7 Questions & Answers

Hello, lornI was trying to help you out here. Maybe this will help some? I was going back to some customers that asked questions in the recent past and even farther back. It appeared that no one answered some of them, So, I thought I would take some of my own personal time to see if I can help. Even though this a Informational site may not have your exact model or brand, But this site will help you a lot. Here is the site link about everything you want to know about vacuum cleaners and possibly yours, from repair to trouble shooting it.http://home.howstuffworks.com/vacuum-cleaner.htmPlease if this helped you at all, if you can find the time and in your heart to rate my help and some kind words written would be appreciated for my free help, I would appreciate it. Like I said I just tried to help, If anything this is good information for future problems. If you felt that my free help was a waist of time for you, I'm sorry.I do not get paid to help people on the site, I do it cause I like to help.Here is also my direct link to my own pages of other areas of my expertise for other problems you might have in Automotive, Appliance, and Electronics. Drop In anytime for my help.Thanks, Mikehttp://beta.fixya.com/users/mc1bean

Hello, msI was trying to help you out here. Maybe this will help some? I was going back to some customers that asked questions in the recent past and even farther back. It appeared that no one answered some of them, So, I thought I would take some of my own personal time to see if I can help. Even though this a Informational site may not have your exact model or brand, But this site will help you a lot. Here is the site link about everything you want to know about vacuum cleaners and possibly yours, from repair to trouble shooting it.http://home.howstuffworks.com/vacuum-cleaner.htmPlease if this helped you at all, if you can find the time and in your heart to rate my help and some kind words written would be appreciated for my free help, I would appreciate it. Like I said I just tried to help, If anything this is good information for future problems. If you felt that my free help was a waist of time for you, I'm sorry.I do not get paid to help people on the site, I do it cause I like to help.Here is also my direct link to my own pages of other areas of my expertise for other problems you might have in Automotive, Appliance, and Electronics. Drop In anytime for my help.Thanks, Mikehttp://beta.fixya.com/users/mc1bean

I think this is a common problem, as the actual switch is located behind the cleaning tools caddy. The switch is toggled via a long, plastic rod connected to the thumb slider on the handle. It's a comically poor design. I'm not sure, but I think you'd have to replace the entire handle assembly if the slider no longer works. An easier solution is to simply plug the vacuum into a surge protector with an on/off switch.

Something in your bag was a liquid. There are no lubricants or anything :)

The belt shouldn't be too tight. If there is just a small amount of slack, like you can press down slightly with your finger, the belt is fine.
There is no way to tighten it, just make sure you have the correct belt and it's on correctly.

The following link leads to the user's manual, which has instructions for replacement.
http://www.hoover.com/pdfs/manuals/U6439900.pdf

one of the two hoses is clogged

check the entire route of the dirt from the rollers to the bag, in both places, the roller path as well as the Hose path

My wife picked one up on the side of the road that someone had tossed. The power switch would not turn off. I took the two bolts out of the top part of the handle, and then removed the screws along the back. This will remove the required panels to access the On/Off switch. Once I found the actual on/off button, I found it to be frozen in the "ON" position. After manipulating it for a few minutes, I got the switch to work. This machine now operates great, and I now have a Hoover :)

the best way to clear the hose is to use a wire coat hanger to fish out the debris ( bend the wire straight and then bend a small hook in one end ).
also make sure you remove the floor plate and fish out that hose area.

c...

This is a common problem with this model. There is a microphone in the rear duct that is not firmly seated. Usually this can be cured by removing the duct at the rear of the vacuum, that the hose attaches to, and using a small screwdriver to push around the outer edges of the small round microphone button. It may not look as if anything is happening, but this will usually cure the problem. I like to put a small piece of sponge or rubber against the mike to hold it more firmly in place prior to re-assembly.

Be sure the on/off button and the power drive button are both in the OFF position before installing the handle. The actual switch inside must also be in the OFF position.