Question about Hoover U5491-900 Bagged Upright Vacuum

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Embedded dirt indicator light stays red

I used my new hoover bagless windtunnel vacuum today for the first time and was thrilled to see that the embedded dirt indicator light was telling me when my carpets were clean. During use, the indicator light stayed red, and would never turn back to green.
It is not that my carpets are still dirty, as I re-vacuumed areas where the indicator light had been green, and now it stays red.
Is there a simple fix for an indicator light?

Posted by on

  • somethinelse Apr 06, 2009

    The light was perfectly functional until the first time I changed the bag. Now it doesn't go back to green.

  • mgambuzza Apr 12, 2009

    This is my second windtunnel to do this (I brought the first one back after a week because the Red light stayed on constantly).  The replacement vacuum worked perfectly until I started vacuuming a newer pile carpet (normally pulls out lots of fibers) and the Red Light started staying on more frequently. Moving to another room and now I am finding the Red light stays on almost constantly.  I have looked at the elbow on the upper body - cleaned it out, replaced the bag - and still no difference.  Where specifically is the sensor located on this Anniversary model?  Is there anywhere that pictures are posted, etc to see and/or view the sensor and cleanout procedures (ie YouTube).  I know some may say take it to the repair shop, but if I have to bring it to the repair shop every time I vacuum a carpet, I might as well bring this vacuum back for another model.

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6 Suggested Answers

Buffalo12980
  • 625 Answers

SOURCE: Embeded Dirt Finder

check out the switch that activates it. go to thehooverstore for a complete listing of hoover machines. I'm sure you'll find your machine listed along with an exploded diagram of the machine

Posted on Sep 22, 2007

reddevil6
  • 1673 Answers

SOURCE: Problem with embedded dirt finder

Take the hose off at the back of the vac, should just turn then pull oull, look down inside the tube that the hose was connected to, there is a sensor there and if it is coated over with dirt, then it can't work, Clean it off and the try it, if it still stays on, then you have a bad sensor, and if this is less then a year old, you have a one year warranty on this. Take it to a warranty shop and take proof of purchase with you.

Posted on Jan 15, 2008

yalmer
  • 549 Answers

SOURCE: U5780-900 Windtunnel maintance / cleaning

http://www.hoover.com/pdfs/manuals/U5780900.pdf
Here is a link to a pdf file at hoover website.
It explains alot.

Posted on Feb 22, 2008

  • 199 Answers

SOURCE: My hoover U5720950 windtunnel bagless vacuum loses

when you lower the handel it is pinching the vaccume line constricting suction

Posted on Jun 11, 2009

Vac Belts
  • 701 Answers

SOURCE: Hoover U5780-900 Windtunnel Cyclonic Bagless

You probably need to change the belts. Here are the belts you need and the manual:

Hoover 5780-900 Belts

Manual

Posted on Dec 23, 2009

Testimonial: "Replaced the belts-- works GREAT!!! Thanks"

  • 1 Answer

SOURCE: hoover windtunnel dirt finder light stays red

I'm not sure about a 3 month old vac, I'd probably go the warranty route. However, for the older vacs thy start getting false positives. The sensor is simply a microphone hooked to a computer chip detecting sounds of dirt entering the bag.
To rig it to start working, you'll need to remove the tool accessory tray and elbow that enters the back of the vac, and attached to the bag. This will reveal the microphone at the elbow, and wire that runs into the bottom area of the vac. When on, a large amount of air comes from the bottom screw and area where the wires enter. My fix was to clean up the microphone contact points a little bit with a screwdriver, and then leave the vac running while putting in dampering in the hole at the bottom, and around the back of the elbow. Cotton balls and electrical tape at the bottom hole, and napkins around the outside of the elbow (wedged between the back of the vac assembly and elbow did the trick). The schematic for the vac is here: http<colon>//www<dot>vacsrus<dot>com/CartGenie/pg_U6485900<dot>asp
Look for micrphone.

Posted on Jun 27, 2010

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