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Re: Hoover Wind Tunnel U5720-950
Be sure it has a new bag and fillter, or try running it on a clean surface with the door off. if it still has a burn smell and only runs a few seconds the motor is probably bad. expensive and difficult to access. kitty litter has moisture in it and the vac motor is strong enough to pull the moisture out and draw it through the motor which will damage the commutator. kitty litter (and plaster dust) are stone dust composed and will pass some material through filters in to motors. for such jobs you should use a shop vac style machine , since they have a bypass motor that doesn't pass material through it.
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Hi there! There is no reset button on the cleaner. The vacuum has a thermal protector sensor that will shut the vacuum off when the motor reaches a certain temperature. This is usually caused by a clog or filter that needs to be cleaned or replaced. Be sure to check the hoses for clogs and clean and replace any filters if needed. The vacuum will turn back on when it cools off, this can take up to an hour. Good luck!
If the motor stopped running, it most likely did because it was not being cooled, becuause something was stopping up the air flow. If you have cleaned the secondary filter out and it still stops while running, then remove the exhaust filter cartridge and try it then. If it does not stop running now, then the problem is the previous models like this had a foam filter as the exhaust filter, not a heppa cartridge filter. You will not hurt the machine by running it without the heppa cartridge. Cut a foam filter to fit to replace it. I do not think Hoover knows this yet.
I have a customer working on this problem today (Sept 2010) I have repaired machines for 30 years. This filter is meant to just catch the tiny particles from getting back into the air. However, it worked fine on the previous machines with the foam filter here instead of this Heppa cartridge.
If you turn the vacuum over there will be (4) screws that hold on the base cover for the roller brush. Remove the screws and the cover and you can get to the belt(s). You can get replacement belts here:
Did you check down by the brush roll for a clog in the dirt inlet. And is the brush roll turning freely, if it is being lugged down, it can cause the motor to overheat and the thermo protector will caught it off, until the motor cools down. But if both are ok, then maybe the motor protector needs to replaced, it is prematurely tripping.
A clog or partial clog is what causes the motor to overheat, then a thermo protector will cut off and the motor will stop until it cools down. So either you do have a clog, in the hose or down by the brush roll. If they are clear, and the filters are clean, then maybe the thermo protector is bad and needs to be replaced.
Did you check the inlet from the bottom? Take the bottom plate off, make sure that the tube(inlet)is free of any clogs. Also if the belt is stretched, then it won't drive the brush roll like it should, replace it part #38528033.