Heat Pump vibrating noise
Have a 4T Carrier HP and it has been doing a great job keeping us warm in KC. However, I am getting a "droning noise" that goes thru the house every once in a while, and it gets worse the colder it gets. HVAC guy said that the line set was clamped to the joists, which is why I am getting a vibration noise. Does this sound correct, and what can I do to fix it? I'm thinking I should set my emergency heat to 35 or 40 and use the furnance at the lower temps.... Thanks.