Homeowners in Moncks Corner and the Charleston area often find themselves relying heavily on their air conditioner during the summer heat and humidity. While a low and constant hum from a well-maintained AC should never be a concern, there are instances where strange noises from your cooling system can indicate a serious problem.
If your AC is making noise in Charleston, SC, trust the team at Coastal Air Solutions. In this blog, our team details common HVAC noises, along with the types of AC repairs these issues may require.
Warning Sounds and What They Could Mean
Even with routine AC maintenance, cooling systems can experience issues that lead to strange sounds. Unusual AC noises often indicate issues such as loose internal components, worn fan motors, electrical problems, or refrigerant leaks, all of which can worsen if left unaddressed. That’s why we recommend homeowners contact our team if they are experiencing any of these noises:
Banging
Banging or knocking noises from your AC can be caused by a variety of issues, including loose internal components, an unbalanced blower fan, or debris in the outdoor unit. If the noise is coming from the compressor, it could mean the internal parts are failing. However, sometimes these issues can be resolved by tightening and replacing loose parts or repairing the blower. Keep in mind that continued operation with these issues can cause significant damage and lead to an early AC replacement.
Screeching
Screeching is typically caused by high friction in moving parts, which can lead to overheating and motor failure. The root cause is often a worn-out or misaligned blower belt, failing motor bearings, or a seizing fan motor. These issues can quickly escalate from noisy to non-functional. That’s why it’s best to call for the necessary repairs, which may include belt replacement, lubrication, or blower motor replacement.
Buzzing
Buzzing is a sign of electrical issues that could pose a fire risk or lead to sudden AC failure. It can also be the result of a bad capacitor which leads to overheating. Once a technician diagnoses the root issue, your AC may need new electrical connections, a capacitor replacement, or more to restore proper function.
Hissing
The greatest concern with hissing noises is refrigerant leaks. These reduce cooling efficiency and cause damage to the compressor, resulting in costly repairs. Leaks that worsen rapidly can pose safety concerns. That’s why homeowners should call for service quickly to find and seal any problem areas.
Why Charleston’s Climate Puts Stress on HVAC Systems
The humidity and long cooling seasons in coastal South Carolina can place extra strain on AC systems, making early detection and professional service important. Luckily, homeowners can avoid major breakdowns and keep their cooling systems running efficiently with prompt attention from Coastal Air Solutions. Instead of ignoring problems and allowing them to worsen, trust our team to provide lasting solutions that keep your system operating at peak performance.
Protect Your AC with Coastal Air Solutions
Coastal Air Solutions is proud to offer trusted air conditioner repair in Charleston from our highly-trained, expert team. We bring help to your home in the Tri-County area and ensure that your AC system receives quality care. With service for any make or model, we help keep you comfortable at any time of year. Plus, we offer emergency services to handle urgent problems.
Call Coastal Air Solutions today to schedule AC repair in Charleston, Moncks Corner, or the surrounding areas.
