My recent find, a Hoover ultra self propelled windtunnel model U6425-920

bransvacuums

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Joined
Sep 18, 2023
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7
Location
Edmonton Alberta Canada
Here is my recent find that I found from Facebook marketplace. This is one of the early models of the Hoover self propelled windtunnel. I got extremely lucky with this find. Not only that it was only $45 dollars, but the machine was hardly used. The person who sold me this machine said it was her son’s vacuum. I assumed he worked at a place like Sears, and they ended up giving the display unit to him. Someone who would spend $300 on a vacuum and not use it at all would be crazy. When It first used the machine, the belts were obviously on their way out. That is expected for a 20+ year old belts. There was no clogs, no damages, or anything missing. It just needed a simple tune up. I gave it more than a simple tune up. I took the clear nozzle out of the machine just so I can wash the parts, and grease the motor mounts. The brush roll was like brand new. There was only some dirt and hair in it, but that was pretty much it. I greased the brush roll bearings, the idler arm bearing, and even the exposed bearing on the transmission. You would think Hoover would be smart and upgrade to sealed bearings for a bypass vacuum, but they decided to still use these old school open bearings. I cleaned the other parts on the machine as well. It actually still smelled like a new vacuum believe it or not. The factory smell is probably gone now, but oh well. I used some of my Bissell style 4 hepa bags since I didn’t have any type y bags. It actually fit on the bag collar perfectly. The filters were like new. The original belts were on their last leg, especially the self propelled belt. It was cracking and parts of it were in the nozzle. It actually didn’t snap as you see in the picture. I just decided to cut it to make it easier to remove. Putting a new v belt is like nothing, but when it comes to putting the self propelled belt on the pulley, it is definitely not as easy. You have to slightly turn it inside out so it can be rolled on the pulley. I got it fully tuned up today, and the thing is like a beast. This machine really is a self propelled vacuum. Like that is not a market technique at all. You barley have to push this thing. It just takes off on you. The agitation is also aggressive. You pretty much have all the tool suction you need on this vacuum. I will say, the hose could’ve been longer. I will soon have to buy the extra 20 foot hose. The filtration on this vacuum is actually very good. Is it fully sealed? No, but it does way better than the twin chamber. The performance on hard floors is one of the best I’ve seen. The brush roll shut off feature prevents dirt from being blown behind the machine. With a machine this fast and this powerful, you actually want to vacuum more often. I can’t believe how long the production of this machine lasted. It went from 1997, all the way to 2018 I believe. They were ranked by Consumer Reports as number 1 for uprights every year. Hoover had the ultimate vacuum with this model. The chances of another self propelled vacuum made by Hoover is very low. I know a lot of these went in for repair was because people carried it by the handle, which snapped both the cable and the arm. That’s obviously the consumers fault. I heard the CWP brush rollers are actually more aggressive. I know the bearings are sealed, but I actually wouldn’t know unless someone can tel me if there is a difference. I’ve only used windtunnels with the original brush rolls. I will definitely not sell this machine. It will stay in my collection forever. If you have a self propelled windtunnel, tell me what you think of them.

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Definitely wasn't always ranked by CR as the number one choice for uprights, Kenmore usually ruled supreme on that list (which I highly disagree despite being my favorite brand). Based on this video down below, they quit recommended those Hoovers at one point. You can't blame consumers for breaking the idler arm and cable by carrying the machine on the handle, that's clearly a design flaw. The past self propelled Hoover models had WAY less if not barely any problems being carried by the handle. In fact I've never broken the transmission on my aunt's (now mine) Concept Two and alot of times I've carried it by the handle.

 
I loved this Hoover Ultra SP Windtunnel after I bought it as a gift for my parents anniversary. Their condo had acres of plush carpeting and this Hoover made it a breeze to do the weekly vacuuming. My only gripe was that there was no suction relief valve on the hose handle to reduce the power when cleaning with the small tools. And the upholstery nozzle was downright dangerous to use on draperies and upholstery: the sharp edges of the plastic on the nozzle felt too harsh to use with the extremely high airflow in the hose. Forget using it on a mattress or quilted bed spread…that nozzle would snag any stitching in the fabric.
 
I used to have one of those. Got it for free from a vacuum store, and.. well, I got what I paid for. The self-propel cable was busted on it, it had a horrible case of the Hoover lean (to the point where the handle release couldn't support the machine well), it's idler pulley and brushroll shut off were broken (the former of which was fixed), and the rear extension wand clip broke off. I took it to my dad's old place, where somebody overfilled the bag, and it "exploded", then I never saw it again. Now I have the premium version of it (same machine, only with glitter speckles in the green plastic, an EDF, and a brushroll indicator for when the machine's in the upright position or not).
 
Really like the 1st generation Windtunnels

I really like the 1st generation Hoover Windtunnels. They do a great job of cleaning and many have a decent set of onboard tools. Just got my second (a green U6425-920 like yours) today and it's a gem.

It was a thrift-shop find that sold for less than a 2-pack of Type Y HEPA bags. The brushroll barely turned due to hair in the brushroll bearings, which is probably why it was donated. I bought it not because I really wanted it, but because it came with a new set of HEPA bags, belts and a final filter that would fit my daily driver - a sparkling blue Windtunnel Anniversary U6485-900. It came with all original accessories, a turbo brush, 2 sets of spare belts, a new final filter and 5 new HEPA bags. After some maintenance and buffing of the plastic, it now shines as it cleans.

I believe that these two similar Windtunnels are equivalent cleaners. The anniversary edition has a dirt sensor that I like and carries a turbo brush not found on the U6425. The only thing I don't like about these Windtunnels is that for stairs, drapes and high places, an additional hose and handle/wand are needed. I connect a 6-foot Hoover hose with metal wands and a suction control handle for these cases.

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