During the winter, you probably don’t think about your air conditioner much. However, now is the perfect time to ensure your unit is in top condition and ready for warmer weather. If you hear strange noises when you turn on the unit, you may need AC repair. The professionals at Richmond Hill Air Conditioning in Bryan County, GA, explain five common sounds and what they mean. 

5 Sounds That Indicate the Need for Air Conditioner Repair 

1. Hissing 

Hissing or whistling could be a sign of a refrigerant leak. The refrigerant line conducts outside air into the system, where it’s conditioned and released. The hissing is caused by a constant stream of air being released from the pipe. Leaks can also occur in ductwork, or if the copper wires that transport the refrigerant are damaged. 

2. Bubbling 

Like hissing, bubbling often indicates a leak. When the cooling system is leaking, air bubbles form in the pipes. You may be able to hear it when they rise and pop. Don’t try to repair leaks yourself. Instead, turn off the unit and call an HVAC professional immediately.

3. Rattling

Rattling is one of the most common sounds air conditioners make. Over time, screws, nuts, and bolts loosen and rattle when the machine is running. Before calling an HVAC contractor, turn off the machine and make sure everything’s fastened securely. If the outside unit is rattling, check the fan grill. Fallen debris can get stuck there and cause it to shake. 

4. Thudding 

Thudding indicates something is falling off inside the unit. A small piece may be getting hit by the blades, or one of the blades might be loose. Again, turn off the unit and ensure everything is secure before calling a professional. 

5. Screeching & Squealing 

Screeching or squealing is often a result of a worn-out interior motor belt. Over time, the belt will erode and require replacement. Fortunately, belts aren’t very expensive and can easily be replaced by an HVAC technician. 

With preventative maintenance and proper care, air conditioners can last many years. If your HVAC system is making odd noises, call your local AC repair specialist right away. For Bryan County residents, Richmond Hill Air Conditioning is the local authority on HVAC repair and installations. Call (912) 756-2288 to speak with a friendly team member, or visit the website to learn more about their services.