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Sounds You Should Never Hear From Your AC

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July 19, 2025

In Georgia, ACs are designed to run quietly in the background. While some noise is expected, hearing loud or strange sounds coming from your HVAC system can suggest a problem is brewing. Here are some common sounds that often mean it’s time to contact your local Emerson AC company for repairs.

Loud Banging or Clanking

If you hear a loud bang or clank when you turn on your AC, that could be a sign of mechanical failure. Hearing this sound is your cue to turn off your system and contact a professional. Ignoring it could lead to a costly AC replacement, which can be much more expensive than repairs.

Grinding and Screeching

This sound usually means there’s major friction in the AC’s motor and can be another signal to call an HVAC technician. There’s a chance that you have worn-out or damaged bearings in the motor or compressor. If you have an older model, screeching can happen if the system’s fan belt is loose or worn. 

Leaving your system on in either case can create larger problems, so make sure to turn off your unit to prevent further damage and reach out to an Emerson AC company right away.

Frequent Rattling

The culprit for rattling sounds can be as simple as a piece of debris banging around in your unit. However, it could also mean that there’s a loose internal component, which can snowball into a major problem. A professional can inspect your system to determine the source of this sound.

Repetitive Clicking

It’s normal to hear a brief clicking sound when your AC is turning on and off. But if you hear rapid clicking noises, that could signal a malfunctioning relay or thermostat troubles. If the clicking doesn’t stop, your system could be short-cycling, which can be a serious energy drain that also puts stress on your HVAC system.

AC Squad: Your Trusted Emerson AC Company

Quiet your HVAC system and your mind with a tune-up from the pros at AC Squad. From installation to repairs, we can handle all your AC needs with affordable and reliable service. Contact our team today to schedule an appointment.

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