In the heat of a Clemson, SC, summer, a ductless air conditioner can be your best friend, humming quietly in the background while keeping your room addition or home cool and comfortable. Typically, you’ll hear a soft whoosh of air, the gentle buzz of the compressor, or the occasional click when the system cycles on or off. But if your ductless AC system begins making strange or sudden noises, it could signal a need for repair. Here are the sounds you shouldn’t ignore during the sweltering South Carolina summer:
Loud Buzzing or Electrical Zapping Sounds
If you hear a constant buzzing or an occasional zapping noise, it could indicate an electrical issue inside your ductless air conditioner. A failing capacitor, loose wiring or malfunctioning control board might cause this. Ignoring it could lead to system failure or a fire hazard. Call an HVAC service technician promptly to investigate.
Clicking or Ticking That Doesn’t Stop
While a single click during startup is normal, repeated or continuous clicking is not. It could indicate a problem with the fan motor, relay switch or thermostat communication. In Clemson’s hot, humid climate, prolonged clicking can also be a symptom of excessive moisture buildup, causing electrical contacts to malfunction.
Gurgling or Bubbling Noises
Gurgling or bubbling usually points to a refrigerant line issue, such as air trapped in the lines or a potential leak. This impacts your system’s cooling efficiency and can strain the compressor. Without fixing the issue, it may shorten the lifespan of your ductless AC system, especially when working overtime in the summer heat.
High-Pitched Whistling or Screeching
A whistling or screeching sound often means there’s a problem with the airflow, such as a clogged filter, blocked vent or a damaged fan blade. Sometimes, it may also signal a pressure imbalance in the refrigerant lines. These issues can worsen quickly and compromise cooling comfort, so schedule a professional inspection without delay.
Don’t risk your comfort and health by ignoring a noise you suspect means trouble. Contact Complete Heat and Air if your ductless AC system is making strange sounds and needs repair.
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