5 AC Noises You Should Be Concerned About in Tequesta, FL

There’s a disconcerting feeling that washes over you when you hear a new sound in your Tequesta, FL, home. What quickly runs through your head is whether it should worry you. Here are five AC noises that should alert you to a problem:

Loud Buzzing

You may normally hear a quiet humming or buzzing from your system. However, if that becomes loud, it indicates a significant electrical issue somewhere. This could be as simple as your condensing capacitor, or it may be indicative of a faulty fan motor, loose wiring or even a circuit breaker.


A loud screech often indicates dangerously high pressure at the compressor or a faulty fan motor. If the screech continues the entire time your system is running, it’s most likely the motor. Therefore, you’ll need to schedule a repair.

Hissing or Bubbling

A hissing or bubbling sound most likely indicates a refrigerant leak somewhere in your system. This may pose a health hazard if the leak is inside your home. Regardless of the location, allowing your system to run with low refrigerant also causes damage, leading to extensive AC repairs.

Clicking or Chattering

You may hear a clicking coming from your condensing unit, with some people describing it as a chattering sound. This is often caused by a malfunctioning contactor, which is a switch that controls the condensing unit. Left unchecked, this puts substantial strain on your compressor due to rapidly starting and stopping.


You may notice a rattling sound coming from your system as it ages. This is most often caused by loose parts such as fan blades or the condensing fan cage. It may also indicate something has come loose and is being tossed around as your unit runs.

Prevent many of these AC noises before they begin by having your system professionally maintained. Call to schedule your HVAC maintenance with the experts at Ranger Air Conditioning today.

Image provided by iStock

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