Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum\015 Need to replace switch\015

How to Identify and Fix Common Vacuum Problems ?

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WindTunnel technology and Multi-Cyclonic filtration lifts and removes surface debris and deep down embedded dirt with no loss of suction. The 25ft. power cord automatically retracts in seconds so you never have to wrap a cord again. An assortment of tools and an extra-long cleaning hose offers up to 10ft.
MAINTENANCE: both the Hoover and the Dyson are bagless, equipped with a dirt cup/dust bin. After your vacuuming chore, simply detach the dirt cup/dust bin and press a button to release all the accumulated dirt.
A wind tunnel that is open on both ends and draws air from the room into the test section is called an open return tunnel. The tunnel at the lower right of the figure is an open return tunnel. A wind tunnel that is closed and re-circulates the air through the test section is called a closed return tunnel.
How Do Wind Tunnels Work? Wind tunnels usually have powerful fans to move the air through the tube. The object being tested is placed in the tunnel so that it will not move. The air moving around the still object shows what would happen if the object were moving through the air.
Where do I find my Model Number? Model information is displayed on the product`s “DATAPLATE” label on the bottom or backside of the unit.
You will find the model number on a sticker or rating plate. This can usually be found either on or behind the door frame, or behind the removable kickplate panel at the bottom of the machine.
With vacuum bags, the air inside these items is sucked out, and their bulky size is reduced to a fraction of their initial volume. The bags also keep items away from dust and moisture, and they allow you to have additional free space in your room.
HEPA is an acronym for “high-efficiency particulate air.” HEPA is a type of filter that can trap a large number of very small particles that other vacuum cleaners would simply recirculate back into the air of your home. 1. HEPA vacuums are recommended for minimizing dust, dander, and other common allergens in homes.
Standard wind tunnel models, also known as reference models, calibration models (French: maquettes d`étalonnage) or test check-standards are objects of relatively simple and precisely defined shapes, having known aerodynamic characteristics, that are tested in wind tunnels.
In equation form: v = Q/A, where v is wind speed, Q is volumetric flow rate, and A is cross section area. The volumetric flow rate is the CFM rating, and the flow cross section area is just 1ft^2 since the test section is 1ft by 1ft. So, you`ll end up with a number measured in feet/minute.
The wind tunnel, called JF-22, has a diameter of 4 metres (13 feet) and can generate incredibly high airflow speeds of up to 10 kilometres (6.2 miles) per second. This makes it capable of simulating hypersonic flight conditions up to Mach 30, which is 30 times the speed of sound.
Most wind tunnels are just long, straight boxes, or open-circuit (open-return) tunnels. However, some are built in closed circuits (or closed return), which are basically ovals that send the air around and around the same path, like a racetrack, using vanes and honeycomb panels to precisely guide and direct the flow.
Hoover HL1672D3 7KG 1600 Spin One Touch Washing Machine.
Hoover Whirlwind Upright Bagless Vacuum Cleaner WR71/WR01001.
Plug in the charger as shown

There is an indicator light to show that it is charging. When fully charged the light turns blue. To charge the battery simply plug the charger in as shown, the battery can be charged while still in the cleaner or you can remove it for charging.

To access the rating plate on a Hoover appliance, always open the door of the product, then follow the instructions below. The model number is 8 digits long (beginning with a 3) and the serial number is 16 digits long.
The model number is on the top left of the Bar code. Here is list of some very common positions or areas of the Dyson Vacuum where you will find the model and serial sticker.
4-in-1 Lightweight Vacuum Cleaner: Detachable features with a crevice tool, the corded vacuum cleaner can easily convert into handheld vacuum cleaners for cleaning bed, sofa, desktop, car, etc.
Bagless vacuums, as the name suggests, don`t use a replaceable bag that collects the dust and dirt from the surface. A bagless vacuum cleaning machine is compact and uses a dust cup or chamber to store the dust and dirt. The dust cup used in the vacuum cleaner can be easily emptied and cleaned.
The only difference between the two is the fact that absolute HEPA filters claim to remove more than 99.97% (but less than 100%) of particles that are 0.3 microns in size. The bottom line is, if a filter reaches the 99.97% threshold, then it is HEPA level filtration, regardless of the term applied.
Advanced particle filtration: The Super-HEPA removes 99.9% of all particles at 0.1 microns in size. A regular HEPA removes 99.97% of all particles at 0.3 microns. Both are trusted particle filters that help provide cleaner air.
Vacuum cleaners use an electric motor that spins a fan, sucking in air – and any small particles caught up in it – and pushing it out the other side, into a bag or a canister, to create the negative pressure.
A manual sweeper is used to clean floors, just like a vacuum cleaner. It houses a set of rollers which, when pushed along the floor, rotate and sweep dirt into an integrated container.
Diffusers are important components in fluid systems such as wind tunnels. The main role of a diffuser is to reduce the dynamic pressure and convert it to static pressure, resulting in a reduced loss in the downstream flow.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I own a self-propelled Hoover Wind Tunnel vacuum cleaner (Model U6425-920). I do now have an owner’s manual and was wondering how to clean the Hepa filter on this model (*this model uses a vacuum cleaner bag also).
ANSWER : Http://geeksquad.fixya.com/ThreadView.aspx?prdid=0&thid=794479
.Generic problem for all Vacuums
.I own a self-propelled Hoover
.Posted by gohornsgo on July 17, 2008
.I own a self-propelled Hoover Wind Tunnel vacuum cleaner (Model U6425-920). I do now have an owner’s manual and was wondering how to clean the HEPA filter on this model (*this model uses a vacuum cleaner bag also).
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. The best way to clean the HEPA filter is to take it outside and use a blower over the trash can and blow off the dust and dirt, or use things like an old paint brush and brush it off, or you can vacuum it off with another canister vacuum or shop vac if you have an extra one. For the best filtration is to replace it, there fore the air flow will catch most of the dust and dirt and then you would have to watch how fast it gets dirty and then do the maintenance.

.So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
.http://www.hoover.com Telephone
Contact our Customer Service Department at 1.330.499.9499
Monday through Friday
8 a.m. – 7 p.m. EST

.Thanks, Don the Vac Man
Go Ahead. Use Us.


Hoover Wind Tunnel U6458-900
Self Propel doesn’t work – via other expert advice here for other models of Hoover – I’m thinking it is the actuator that needs to be replaced as I can see the cable does not connect to anything on the bottom. My problem is – I can’t get the cover off. Been trying for a couple of hours. I removed every screw I can seem to find but something is hold it down. I also am wondering if/when I do eventually get the cover off, would I need to replace the cable when I replac
ANSWER : On some models there are hook/springs that hold the cover of the base snug.

Hoover Bagless Hello,      My Hoover bag less (Model U5280-900) is not picking up dirt like it should.  The brush roll is spinning fine, but the bristles on it are only about one quarter inch long.  I am wondering how long they should be.  The vacuum is quite a few years old.  Do you think it is time to replace the brush roll.  Could you email me at [email protected] about this topic.  The product bar below did not contain my model no.  The correct model no. is above in my message.  Thanks
ANSWER : If the belt is more than six months old then change it even if it is not broken. then replace your filters if that doesnt work than check the hoses for a clog drop a marble down them and make sure it comes out.

Repplacing power cord on Hoover Wind tunnel (not self propelled)
ANSWER : I am thinking that the cord goes in on the back, just below the handle. Remove the handle, then from the front, remove the tool holder(#8), then you can get to where the cord comes in and hooks up.

Hoover wind tunnel
ANSWER : 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.

I have a Hoover Wind Tunnel Supreme mach 3.9. It
ANSWER : Check the filter above the dirt tank. If you take out the dirt cup and look where in slides into the machine, there is a filter that is probably dirty. It can be cleaned or replaced

Changing belts on Hoover wind tunnel U6401
ANSWER : Take off the bottom plate covering the brush roll, 4 screws. There are 2 belts, if you replace both, put the V belt on 1st, then stretch the flat belt over the motor shaft, then over the bigger pulley along side the V belt.

How to change the V belt on hoover wind tunnel U6435-900 ?
ANSWER : Below I have listed a link to the manual which has instructions and a link to the V belt you need.

.\011\011\011\011\011\011Windtunnel Manual

Windtunnel Replacement Belts