When people complain online about a brand new air conditioner being surprisingly loud inside their homes, the issue usually stems from improper installation practices, oversized equipment, or ductwork design flaws rather than manufacturing defects. Common factors include high-velocity airflow rushing through undersized or poorly sealed ducts, sheet metal vibration caused by loose connections, or the air handler being mounted directly against living area walls without adequate sound dampening or vibration isolation pads. Contractors can often resolve these interior noise issues by adjusting fan speeds, adding acoustic insulation, or modifying the duct transitions to smooth out airflow turbulence.
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