20 Most Recent Hoover Self-Propelled WindTunnel Bagless Upright VacuumVacuum Questions & Answers

The actuator arm is broken. Common problem. Easily fixed at your local vac shop.

Hoover... | Answered on Jun 12, 2017

is there any loose pieces of carpet or twine wrapped around central bar.

Hoover... | Answered on Jan 13, 2016

Most likely the flat belt has stretched enough so as to not turn the pulley that in turn turns the brush roll using a V belt. Also there is a small idler wheel, if hook up, then it won't engage the V belt.

Hoover... | Answered on Nov 07, 2015

To change the belts, make sure the vacuum is not plugged in. Lay it upside down and remove the screws holding the bottom plate on. Remove the bottom plate, pull the brush roll out noting how the belt goes so you will know how to put it back together. Especially how it goes around the idler pulley. Remove both belts, replace both belts, install the V belt onto the transmission first then around the brush roll and put the brush roll in place. Install the flat belt around the motor shaft and then onto the transmission pulley.

Hoover... | Answered on Mar 06, 2015

Good afternoon,

You did not specify your exact model, so I assume you are referring to the Hoover Model# U6616-900.

The handle is attached to the unit by 4 screws. Below is a picture for reference (in this case, you would do the opposite to remove the handle). Once the handle is removed, this should give you a start in accessing the wiring for the unit.
For further reference, please review the manual for this unit:

I hope this solution helps. Please rate if you can, or ask for clarification and I'll be happy to assist.


Hoover... | Answered on Mar 02, 2015

Some Wind Tunnels by Hoover have a poor design in the switch on the handle. Sometimes the switch does not turn on all the way and will stop running. Other times you can't turn the unit off.

Hoover... | Answered on Feb 28, 2015

Hey there! The thermal protector sensor can not be replaced. It protects the vacuums motor from overheating and burning out. If the vacuum is overheating, follow these quick trouble-shooting steps.

1. Remove the hose from the vacuum from both ends.
2. Use a broom stick to gently loosen and remove any clogs from the hose.
3. Remove the bottom plate and the brushes. Use a wooden spoon to gently break up and remove any clogs from the lower hose.
4. Clean the pleated filter inside the dirt cup by tapping it against the trash can until the dirt stops falling. This filter should be replaced at least once a year.
5. The pre-filter can be cleaned with a brush and then rinsed with water. Allow 24 hours to air dry outside the dirt cup.
6. Clean the secondary filter located behind the grill in the bottom of cleaner cavity. Remove the screw, and grill to access filter.
7. Rinse the filter in cold water with a mild detergent to clean. Allow 24 hours to air dry outside the vacuum.

Following these steps should stop the cleaner from overheating. Hope this helps!

Hoover... | Answered on Nov 12, 2014

Hello there! If you have replaced the belt and it is still slipping off, you may be not have the right belt for your vacuum. This unit takes a flat belt and a v-belt. Make sure you are replacing the belts with Genuine Hoover Parts. I have included the links below where you may go to order the belts specific to your cleaner.

WindTunnel PowerDrive Belt 2 Pack

WindTunnel Self Propelled Belt

Hope this helps!

Hoover... | Answered on Nov 11, 2014

Your self propel wire could be broken. Lean the vacuum back like you were using it. If you stand in front of the vacuum look down and to your left. When you move the selp propel button you should see a wire move. If not then it's broken.

Hoover... | Answered on Jul 01, 2014

Hi, it's Jeremy from Crucial Vacuum.

If there is too much suction, adjust the nozzle control knob to a higher setting. The knob is located on the front of the vacuum at the bottom. For optimal cleaning efficiency a low setting should be used for most types of carpet and for hardwood floors, tile, and deep carpets use a higher setting.

You can purchase direct all of your replacement filters, bags, and accessories for your Hoover vacuum from Crucial Vacuum with free shipping and an exclusive 10% coupon for Fixya.com readers, use code: FIXYA10


I hope this was helpful. If you would like further assistance, please feel free to give us a call at 877.750.9239. We have helpful and friendly customer care representatives on the line ready to assist you.

Jeremy Lerner
Crucial Vacuum Customer Care

Hoover... | Answered on Jun 19, 2014

Remove the handle assembly by removing screws and sliding off. Remove nozzle housing cover and unscrew fastener at end of cable. Pull cable from handle end out of cable sheath. Slide new cable into sheath and fasten at bottom as it was before. You will need to adjust the cable to the proper location so the transmission works properly in both directions.

Hoover... | Answered on Apr 22, 2014

I had the same problem - I found the elbow behind the brush was plugged. You have to remove the floor brush, canister, and hose. Look into the pipe from the top, looking toward the floor brush. Most likely, that's where its plugged. Also check the hose - run a broom handle down the hose.

Hoover... | Answered on Oct 26, 2012


How To Replace The Thermal Protector on Hoover Windtunnel Uprights

All Hoover Windtunnels have a safety feature that will shut down the motor if it starts getting to hot, which prevents the motor from burning out. Usually after this switch trips itself you just need to let the machine cool down for 30-45 minutes and it should come back on. Sometimes even after clearing a clog, or replacing the filters and bags, the vacuum will continue to cut off. If you're absolutely sure that there's no obstructions, or other things that are causing the motor to overheat, then the thermal reset switch itself may have gone bad. Usually you can tell when the switch is bad by feeling the motor cover immediately after the machine shuts off. If it's warm or hot to the touch, this indicates there is something still stuck in the machine. If it's not hot, this means usually the thermal switch itself has gone bad.

Here's how you can replace this switch. Again, it's very important to check all other possible fixes before attempting this repair.

What you'll need to do this repair:
  1. Phillips Head Screwdriver
  2. T20 Torx Bit Screwdriver
  3. Hoover Windtunnel Thermal Reset Switch (this varies from model to model, please contact us to find out which exact one your model uses)

Use a countertop or work bench, and turn the vacuum cleaner upside down so that the handle is resting on the floor, and the brushes are facing upwards. Unscrew the four screws on the corner of the bottom plate that covers the brush roller:

Remove the bottom plate, then pull the roller brush and belts out of your machine. There are 3 screws that hold the top brush cover in place that need to be removed. On the right side the screw is down below the transmission to the right. There's also a screw in the agitator tray, in the middle that needs to be removed. NOTE: This small screw in the agitator tray is only present on some models, may or may not have this little screw, but all models will have all other screws circled. I have circled both screws that need to be removed:
The screws on the left side that need to be removed are also circled. One screw holds the upper brush cover on, and the other two screws secure the hose in place. Remove all three screws as well as the transparent hose cover:

After all of these screws have been removed, there are two clips that are the last things holding the top brush cover onto the vacuum. Use a flat head screwdriver to push these clips off on both the left and right sides. The right side clip is near the pulley that the flat belt rides on, and the left side clip is next to the internal hose.

After popping these two clips out, put the machine on top of the table or work bench, and remove the top agitator housing. You'll see on both sides of the vacuum, two metal brackets that have two black screws. These brackets actually secure the agitator housing to the upright part. All four screws need to be removed from the machine.

After removing the 2 brackets from the machine, you'll now to need to release the self-propelled cable from the agitator housing. Unscrew the 2 screws that are circled (in red), then use your Torx T20 Screwdriver and remove the washer and screw from the actuator arm on the transmission (circled in green)

You will now be able to completely remove the agitator housing (the plastic housing that roller brush fits into) from the rest of the vacuum cleaner. It's best at this time to remove the door that covers the vacuum cleaner, as well as removing the bag itself. Next, remove the two silver screws that hold the headlight lens in place, and remove the lens:

After the headlight cover has been removed, you'll now have access to the light bulb. Unscrew the black screw that secures the headlight. Now you'll need to remove the motor cover to get inside the motor compartment. There are 5 long screws that hold this cover down, two of these are underneath of the plastic piece directly above the headlight (on some models, the dirt finder controls that turn red and green when the floor is clean):

If your model has an "Embedded Dirt Finder" control, carefully turn the plastic housing over so that the circuit board inside is facing you. You can see at the top of the circuit board housing two plastic clips. Simply pull these two clips back with your hands, and release the circuit board from the plastic housing.
There are two wire harnesses that connect onto
this circuit board that need to be removed also. The larger terminal that has the black and white wires has a simply clip that you press, and pull out, the smaller blue and white wire terminal just simply pulls off without having to press a clip.

After removing the circuit board, you'll see a foam part where the headlight, and the two wire harness from the circuit board go into the motor housing. Simply use a pair of needle nose plyers and pull upwards on this foam part to remove it:

Now you can remove the motor cover, and get direct access to your motor. The thermal reset switch is located on the orange wire, right before it connects into the motor terminal. I have highlighted the actual thermal switch in the picture below.

I found that it's much easier to splice the new orange wire to the old wire as opposed to opening up the entire rear of the vacuum to get access to the other end of the orange wire. Cut the existing wire where I have marked it with an X in the picture of above, and use a simple Wire Nut to attach the new orange wire to the old one.

After splicing the two orange wires together, simply re-install the motor cover over top of the motor. Now plug the machine in and let it run for 15-20 minutes while the machine is still apart, just to ensure that the new thermal switch corrected your problem. If the machine did not cut off while testing it, great! Simply put the machine back together and you'll be back to vacuuming.

I really hope that this repair tip was helpful. Due to the complexity of this repair, and the length of time it takes, most vacuum repair shops will charge a lot of money to do this. Hopefully with this guide, you'll be able to complete this repair on your own.

If there's a step that you don't fully understand, or if you have any follow up questions, please don't hesitate to use the comment field, or the clarification request, and I'll be happy to answer any questions for you.

If you need to obtain any of these parts for your vacuum cleaner, please visit our website. Here's a link to most of the Hoover Windtunnel parts that we sell online. If you need something that's not listed, feel free to give us a call or use our online live help chat.
Hoover Windtunnel Parts & Accessories

If you found this repair tip helpful, please be so kind and rate my repair helpful, or leave me some feedback.

Thank you,

Chris Jones

on Oct 23, 2011 | Hoover Self-Propelled WindTunnel...

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