Finding the thermal reset switch on a Hoover Windtunnel 2

SOURCE: Hoover Wind tunnel V2

Either the brush rolls are bad, ends are bad, or the gear housing/motor asm. is bad and will have to be replaced.

SOURCE: How do you remove the Handle from the Hoover Windtunnel Deluxe to replace the switch?

Removing the handle assembly should be easy after removal of the two screws. It may be binding or hanging up on the self-propel cable...or the plastic may just be stuck/binding. Note that the handle slides in and out of the vacuum unit along the same axis as the two screws (i.e. slides straight off the back towards you when you are standing behind the vacuum). Try to pry it off gently w/thin-bladed screwdriver or butter knife (careful now!). Not sure about the smoking issue but you may have a severely plugged filter and the unit is overheating as a result. Check that out immediately/first to avoid fire or expensive motor burnout.

SOURCE: hoover windtunnel U6476-910 switch doesn't work

What has worked for me on this vacuum is once the handle is off and the on-off switch is visible, work it back and forth manually.  Mine was very stiff and it did not get any better.   I went to radio shack and bought a spray can of Control/Contact Cleaner and Lubricant. It comes with a small piece of tubing.  I put the tube into the top edge of the switch and pushed the button FOR A FRACTION OF A SECOND and then did the bottom edge of the switch.   I worked the switch manually a couple of times.   I repeated the spraying one more time and the rocking.   I put it all back together and has been working fine for me.   This stuff is made for electrical contacts...  HOWEVER, use it very very sparingly!!!  ALSO, a new can has a bit of pressure so watch out that you don't blow some back at you.   JOE

SOURCE: auto brush on hoover windtunnel doesn't spin anymore

I have a Windtunnel S3765 with the same problem - and it has very little use so I'm confident it isn't wear. I find that the wheels do not raise the agitator brush sufficiently high to reduce the drag caused by excessive contact with the carpet. If I raise the front a bit the brush spins as it should. It also works if I take the housing apart and use it without ..... but this is tricky.

Unfortunately I haven't figured out a way to hold it up efficiently. I am toying with afixing something to the bottom of the housing to raise the front enough to give the brush a little more room.

SOURCE: Hoover Windtunnel shuts off

I found the following solution on this website. I have searched for hours and finally found this solution, it works! I HAD the same problem after cleaning the filter mentioned below, it is now working like it was new.

***by maverick_bea***
yes this machine has a thermal protector in it to shut off the machine if it gets to hot, this is normal. if there is no clogs in the hoses or in the machine then you will need to wash the filter at the top of the machine. you will have to remove the dirt cup and at the top you should see a half moon orange, well inside of this piece is the washable filter, clean and let it dry completly before putting back into machine. if this gets dirty and has not been cleaned, you can lose alot of suction. in some cases if this filter is not cleaned it can cause the machine to overheat so bad that it can damage the motor.