20 Most Recent Hoover U6616-900 WindTunnel Bagless Upright Vacuum Questions & Answers

Remove the screws that hold the upper handle assembly onto the body of the vacuum. The upper handle assembly will slide off the back to reveal the power switch

Hoover U6616-900... | Answered on Jan 05, 2014

Are the wires still bundled or loose?
If bundled, there are 3 connections to the motor and they make an L shape (sort of). place the motor in front of you so that 2 connectors are on the left and the last is at bottom right. The thermocoupler attaches to the bottom right, usually black or orange wire with the metal device on it. The upper left is usually a 2 white wires clipped together from the power cord and the short junction to the light bulb. The lower left is for connecting the short wire for the bulb to the black wires in the light bulb harness. Just go counter clockwise: Power, light, thermocoupler and you should be in good shape.

Hoover U6616-900... | Answered on Nov 15, 2013

ok so I took this vaccum apart completely except for the electrical and motor systems. It seems to me that without dismantling both of these systems on the vaccum you can't replace the power cord. And I wouldn't recommend taking them apart unless you know what you are doing since replacing the power cord seems to require cutting the old power cord and soldering the new one onto the old terminals. All in all its probably easier to get a new vaccum altogether.

Hoover U6616-900... | Answered on Jan 12, 2013


You can download and print the instruction manual in PDF format by clicking this link:


Adobe PDF Reader is required to view this manual. Download Adobe Reader

Hope this helps. Thanks for using FixYa.

Hoover U6616-900... | Answered on Aug 04, 2011

The aforementioned solutions probably never even attempted this fix on this model. The handle does NOT need to come off. but the 5 screws on the front housing DO: 2 above the light and 3 below it. Then to get the colored housing off you need to access 2 screws on the underside that are beneath the agitator roller. To do that, obviously the 4 screws holding the bottom plate need to come off too. Here's a link to a schematic that might help as you attempt to do this, (assuming that you still do!) http://www.elkypro.com/hoops2005/vacuum_parts/hoover/U5461-900.html

Once you have the main body housing cover off, then you can access the 2 screws atop of each trunnion cover that holds the motor assembly cover halves together. If you've made it this far, then gently pry apart the motor halves keeping even as yo do. Now you can see all the wiring necessary to cut and splice. Happy cord replacing! As for me, I am headed for the store, as I am not so sure I can remember how to get the darn thing put back together. But it was fun taking it apart!

Hoover U6616-900... | Answered on Jun 17, 2011

I can get you to a parts schematic.


Hope it helps


Please rate Fixya

Hoover U6616-900... | Answered on Apr 07, 2011

You will need a Phillips screwdriver and a new belt.
Unplug the vacuum, lower handle to lowest position, and turn it over so the bottom of the power head is up.
Remove the screws from the bottom plate and lift it off.
Remove the flat (outer) belt, or any fragments.
Slip new belt on to motor shaft, then over the large pulley. It's easier to get the belt over the pulley if you spin the pulley toward the brush while doing so.
Diagrams and information are found in the manual.
Click on the below link to get a downloadable copy of the manual. You can print it from there as well. How to change the flat belt is on page 10. The V-belt is on page 11.


Hoover U6616-900... | Answered on Mar 02, 2011

Sounds like you have a valve arm not operating properly. The valve door sould spring open when you lower the handle and will shut when the handle is raised and pushes down on the rear valve arm. See a parts diagram and look at parts 39-41 and 19.

Hoover U6616-900... | Answered on Nov 03, 2010


How To Replace the On / Off Switch For Hoover Windtunnel Self-Propelled Uprights

What you'll need to do this repair:
- Phillips head screwdriver
- Needle Nose Pliers
- Hoover Windtunnel Switch For All Upright Models

Step 1. Turn the vacuum cleaner around so that the back is facing you. Remove the two screws at the top of the vacuum that are holding the handle on the machine. Please see the picture below of the two highlighted screws that need to be removed;

Step 2. After these two screws have been removed, simply slide the handle backwards, and remove it completely from the vacuum and set it aside. You now can see the on/off switch, but you can't easily change it from here, you'll need to complete several other steps before you can remove the switch. Here's what the vacuum should look like after removing the handle:

Step 3. After removing the handle from the vacuum, turn the machine around so the front of it is facing you. Open the vacuum bag door and set the door aside. Also remove any attachments that are on-board in the tool storage bin, this model has a hand-held turbo brush stored here. After removing both of these parts, you'll need to unscrew 3 screws that holds the tool caddy onto the vacuum cleaner. I have circled the area where these 3 screws are located:

Step 4. After removing these three screws, pull the tool caddy off of the vacuum by pulling straight forward by using the tool caddy lid. You'll now have access to both the front and the back sides of the switch. Use your needle nose pliers to remove the two wires that are attached to the switch. Be careful when pulling these wires off because if you pull too hard, then it will break the switch terminal off inside of the wire. Most models have the wire that has a plastic covering over the end of it on the top, and the metal terminal is connected on the bottom. The two lead wires that need to be removed are highlighted:


Step 5. After the wires have been removed from the switch, turn the vacuum back around so that the back of the machine is facing you. Simply use your flat head screwdriver to pry the switch off. You may push on the back side of the switch where the wires connect to it in order to give a space so that you can get a screw driver behind it. Here's how it should look:

Step 6. Once the old switch has been removed, simply push the new switch into the open hole. Important: Make sure that the Off setting of the switch is at the bottom, and the part of the switch that says on is on the top, otherwise the switch will be reversed. Re-attach the wires to the switch, with the wire that has the plastic covering on top, and the metal wire terminal on the bottom. The only tricky part of reassembling is when you put the handle assembly back on the vacuum. As you can see, there is a metal cable below the switch. This metal cable controls the self-propelled mechanism. If you look at the handle assembly, you'll see where the self propelled cable sits inside. The easiest way to line these up is to pull the cable up to the top, and then line up the rod inside of the handle that the cable goes in, and slide the handle back on the vacuum.

I hope this was helpful.

Chris J.

on Apr 10, 2010 | Hoover U6616-900 WindTunnel Bagless...

You can find the instructions with diagrams on pg 10 in the manual http://www.hoover.com/pdfs/manuals/U6616900.pdf

Hoover U6616-900... | Answered on Feb 27, 2010

You need to replace the belt that propels the vacuum. This is the belt you need:

Hoover 38528035 Belt

Hoover U6616-900... | Answered on Feb 16, 2010

This is a typical problem you are describing. I would recommend you change the belts, this will resolve the "hard to push" and most likely resove your issues. based on the s/n given you maching was made on sept 2004.

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_b96ba3f038cf317c

Hoover U6616-900... | Answered on Oct 24, 2009

Not finding what you are looking for?
Hoover U6616-900 WindTunnel Bagless Upright Vacuum Logo

60 questions posted

Ask a Question

Usually answered in minutes!

Top Hoover Vacuums Experts

Brad Brown

Level 3 Expert

18519 Answers


Level 3 Expert

85239 Answers


Level 3 Expert

4369 Answers

Are you a Hoover Vacuum Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Hoover Vacuums

  • Hoover Vacuums

Most Popular Question

vacuum will not pick up dirt plate in

  • Vacuums