I am having this same problem with my 9010 that is just shy of 2 years old. Horribly loud rattle on carpet and hardwoods. It's been thoroughly cleaned and pretty well maintained. Suction seems to still be going strong but I hate using the thing because it is so darn LOUD.
Model #: SRAJ9001U
Model Code: VR2AJ9010UG/AA
There is also another sticker on the bottom that was on the new unit that Samsung sent back after a warranty claim, WGC2876 8/10/2016 YES. No idea what that means though...
Thanks in advance!
Just to confirm, if you run it for a second without the rotating brush connected does the sound still happen?
Long story short, I applied some silicone lubricant to the square where the rotating bar sits and the round part on the other end and the sound vanished. I ran the device and it remained quiet for about 30 minutes and returned. I am going to replace the bar and see what happens.
I am having the same problem with the loud rattling noise and the unit will be 2 years old in August. Did you replace the brush/bar yet to see if the noise stops? I would like to get a new brush, as well, if that solved the problem. Thank-you.
I haven't replaced the bar yet because I think it's still in good condition. What I did do was wrap Teflon tape around the square at the end if the bar and then reinstalled it in the vacuum. The machine is just as quiet as when I bought it. It is a lot more cost effective to do this than replace the brush. By the way, the brush can be found in Amazon for roughly $30. Samsung quoted me $79.