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4 Ductless HVAC Noises You Shouldn’t Ignore in Hartwell, GA

Ductless HVAC System

Your ductless mini-split system in Hartwell, GA, has several components that could be the source of an unusual sound. In many cases, these noises are warning signs that something is wrong with the system and needs quick attention. You should never ignore these four common noises associated with ductless HVAC systems:


A rattling noise is a sign of an imbalance in the system. The fan motor may run too fast or some components may become loose. The noise could also be due to debris lodged in the ductwork or the fan blades hitting something.


A hissing sound could indicate a leak in the refrigerant lines of the ductless HVAC system. The leakage leads to the formation of bubbles, which cause the hissing noise as it passes through the refrigerant line. Refrigerant is essential for proper functioning of your mini-split system, and its leakage can result in costly ductless HVAC repairs.


A banging or thumping sound indicates a problem with the blower motor. The bearings that support the motor may be wearing out, causing it to vibrate and create a banging sound. If a service technician does not align the motor properly in the blower housing, it can cause a banging noise as it runs.


Air handlers have several components that move when the ductless HVAC system runs. The grinding noise can be due to worn bearings that allow the motor and fan to move easily. The bearings wear out over time due to friction and normal use, and oiling them may help quiet the noise.

If you hear an unusual sound from your ductless HVAC system, don’t ignore it because it could indicate an underlying problem that needs immediate fixing. Contact McGee Heating & Air Inc. for a detailed inspection and maintenance of your ductless mini-split system. We offer comprehensive HVAC services to keep your system running smoothly and efficiently.

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