If you've taken off the plastic cover part to fully inspect the bar and there are no peices of dental floss or anything else that may be causing an obstruction, you might have to get a new one.

My mom has a DC14 Animal that started doing that after it was a week old. Thankfully, they just gave her a new one right then and there. I've thankfully never had that happen with my DC14 and if my hunch is currect, based on various reports, some of the earlier production runs of the DC14 were more prone to this failure than the later runs.

thanks... i took it apart again last night, didn't see anything, put it back together... turned it on and it made it's screaching and grinding sound, for about a second, then it stopped making noise and now it works just fine... there must be something small somewhere in the "works" jamming things up... i'm going to take it back for a fix or repair.

Hi! I had the same problem, plus I could barely push the darned thing. I called Dyson and they had me remove something (sorry I can't remember what) from the beater bar area and -hey presto- perfect! The cause was that my rugs were too thick and once the piece was removed we have had no problem. The folks at Dyson were helpful and walked me through the process. Good luck! Jenny

thanks all, problem resolved with a trip to the repair center and a new 'head' for my cleaner.

I found the fix for the dc 33. Open up the cover to the beater bar. look at the cover. You will see many small triangles. Look very closely for a small rubber strip that runs along the edge where the triangles are. It is kinda hard to see. Once you find it remove it. Now on the vacuum itself there is another strip. This strip is very similar but a little longer. Remove that strip. No more shag noise whalla. The perfect Dyson!

Tried this on my new Dyson and it worked. How did you ever figure it out. I talked to two different people at Dyson support and they both told me to return it.