I have several Mitsubishi 6k units wall mounted on an older ~1900 home. I have terrible vibration/noise from all of them. Even on low from the inside it sounds like a diesel truck idling outside. From the outside, no noise whatsoever, I have to look at the fan to see if it’s running.
I have asked my installer to move them down on stands; he wants another $2k for the move. The noise has been a problem from the beginning, and the installer has been unresponsive.
Has anyone had any luck either getting the installer to fix a problem like this, or by going to Mitsubishi getting any relief?
PS, other than this, LOVE the minisplits!