Dyson dc17 animal motor spindle keeps clogging

Please review the material here: http://www.dyson.com/Support/dc17/DC17-ANIMAL/DIAGNOSIS-ROOT-MENU/Flo-DC07-Gen-I-can-see-something-wrong-visual/Redirect-to-Flo-DC17-Check-brushbar/Flo-DC17-Check-brushbar/Flo-DC17-Reset-brushbar/Flo-DC17-Reset-brushbar

hooked rugs produce the highest amount of friction opposing the brush rotation, which can over heat the drive motor. try using a height setting that raises the brush so that it barely touches the pile. If this issue has been going on for some time, you may need to replace the drive motor.

It is probably the brush roll motor making the noise. Remove the brush roll & belt and turn both motors on. If you do not hear the noise when both motors are running the noise is likely coming from the brush roll

Some dog hair is extremely difficult to manage. You will just have to keep an eye on it and empty the collection bin every time u use it. Joe

there is a clog. check the hose, and the entry to the canister, check the holes inside the canister and check / clean your filter. also remove any threads/ animal hair from the brush so i can freely grab the carpet :)

The drive belt has probably broken. You can get a replacement belt here:

Dyson DC17 Belt

Make sure that your filter is clean. The holes are normally clogged.

I was having the same trouble and it was driving me nuts.  I tried cleaning and it did not work.  Then I tore the brush assembly off and looked up into where the little tooth gear is.  I saw something that did not look right.  There was a silver roller bearing laying down below the assembly.  I got some tweezers and found it was not attached to any thing.  I then cleaned out the pet hair and saw a spot where this roller goes that takes the slack out of the brush. It is a pain and takes alot of trying with pliers and prodding  with a screw driver, but I got the roller back where it goes.  It does not attach very solidly, but I put every thing back together and it works great so far.  It is a definite design flaw.  I found that you have to keep the main unit on  the floor when the brush is running.  Do not do stairs or pick it up and do couch cushions, that is when the bearing breaks loose.  Dyson needs to figure out a better design for this.  I was lucky to figure it out, but it is very hard to get to.  Again never pick up the unit when the brushes are engaged.