Strange noises from your AC
A healthy air conditioner runs with a steady, quiet hum. When new or unusual noises appear, your system is often signaling that something is wrong, and the sound itself can help point to the cause.
What these noises may indicate
Banging or clanking is often a loose or broken internal component, such as a compressor part or an unbalanced fan blade. Buzzing is typically electrical in nature, such as a failing capacitor or contactor. Screeching or squealing may indicate motor bearing failure or a worn belt. Rattling is usually caused by loose hardware, panels, or debris inside the outdoor unit.
When to take it seriously
Some noises require prompt attention. Electrical buzzing, grinding sounds, or any noise coming directly from the compressor should be inspected as soon as possible.
Continuing to run the system in these conditions can turn a minor repair into a major failure. If the noise is loud, persistent, or worsening, turn the system off and schedule a diagnostic visit.
Talk to a local expert
Have a question about your specific system? Bertie Heating & Air has served Gainesville and North Central Florida since 1991. Call (352) 331-2005 for honest advice, a fast repair, or a free in-home estimate.