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6 Sounds Your AC Shouldn’t Make


Today’s home comfort systems are designed to work effortlessly and quietly so that homeowners hardly even know they’re on. When it comes to your home’s air conditioning system, it should be relatively quiet. All you should hear is the sound it makes when it turns off and on and the quiet flow of air from the vents.

When all’s not right with your air conditioner, it’ll be sure to let you know. The most obvious way it’ll do so is by disrupting your home’s harmony with loud and sometimes obnoxious sounds. You shouldn’t ignore these sounds for many reasons, the primary reason being that doing so will only make whatever issue is causing the noise worse. If you hear any of these noises, be sure to call us for AC repair in Colorado Springs so we can restore your home’s harmony ASAP.

1. Whistling

Your AC can make this sound for the same reason a human can: by emitting air through a tiny opening. If you’re thinking that your AC shouldn’t have areas for air to leak from, you’re completely right. It usually means there’s a loose or damaged seal somewhere in your AC.

2. Squealing

This sound doesn’t mean your AC is squealing with delight about its ability to cool your home. In fact, it’s the exact opposite. This noise means your AC probably has a fan belt that is loose, misaligned, or worn down completely and needs to be replaced.

3. Running/Leaking Water

This is a sound no homeowner ever wants to hear! If it sounds like it’s coming from your AC, it could mean several things. The most common cause is when the condensate drain becomes clogged and forces the condensate pan to accumulate excess water. The condensate pan is also subject to wear and tear and can develop cracks that allow water to leak out.

4. Clicking

Depending on when you hear it, clicking noises could mean different things. When the AC is running, clicking noises could indicate that the fan blades are bent and misaligned. If your AC is clicking but won’t turn on, it could be an electrical issue with the capacitors. If you have an older thermostat, the clicking could be coming from a faulty thermostat that’s worn out or has a bad connection.

5. Hissing

Does your AC sound like it’s angry about something? Hissing and bubbling noises usually mean there’s some kind of leak. If the noise is coming from the ducts, there could be leaks in the ductwork. If the sound is coming from the AC itself, this could mean there’s an interval valve leak or leaks in the refrigerant lines. Leaking refrigerant is detrimental to your health and if you suspect a leak, you should have it looked at ASAP. 

6. Banging

Banging noises from your AC usually indicates that something is either broken or loose. There could be a loose part that’s banging around your system and clamoring against the walls of the unit. This noise is not only annoying but if it continues unchecked, when it bangs into something it shouldn’t, then the problem is suddenly much worse. 

To schedule AC repairs in Colorado Springs and the surrounding area, contact the team at Robbins Heating & Air Conditioning today.

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