Central Ac Unit Produce Loud Vibration

by peggy arado
(chesapeake, va)

Since day one in my new house, when the central air conditioner unit is running the wall in my living room vibrates and the sound coming from the wall is so deep and pulsating loud , it is ear piercing, you can't sit in my living room when it is on.

They have put a muffler and a vibration reduction thing on the outside unit which made the outside unit very quiet but the inside wall in my house is unbearable.

I have been told by the company who installed it, "some units are louder than others" Nothing we can do about it” This is a new house and new unit and I can't sit in my living room when the air is on. HELP!