Range hood vibrating
We just installed a new Faber range hood as well as a new 6 inch duct to match the 600 CFM output. The problem is - when it runs on a low speed, all is fine, low noise and etc. When it goes to medium speed, the noise is still low however, the hood starts vibrating. I can feel the vibration through the floor (we are in Canada, it is all wood and drywall here). When it goes to High speed, still very little noise, vibration is still there but it is a much much lower. Full 600 CFM produces even lower vibration.
I am going to ask my contractor to look again, but I am not sure at this point if this is the installation or the unit itself. I Googled the problem and found nothing.
Has anyone seen anything like that?