Ya something must be wrong
I have a rainbow mate from 2006 that came with my Rainbow, and though I don't use it a lot, it's always fully powered with no bogging down issues, no rattles, etc. Ya, those Lux ones rattle big time. I have one of those too it's crazy noisy but I didn't get my Epic 6500 new, so I thought that, even though it works, something could be wrong with it since I got the vacuum used years ago on Ebay.
