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Like any other piece of complex machinery, HVAC systems are prone to issues that can interrupt their performance. The experts at Palmetto Heating & Air want homeowners to be able to identify common HVAC problems. In this blog, we’ll explore five common HVAC problems that homeowners and business owners often encounter. Understanding these issues can help you identify and address them promptly, ensuring that your HVAC system continues to operate efficiently.

In this blog, we’ll touch upon these common HVAC problems and suggest solutions:

  • Explaining the effects of dirty air filters on your indoor air quality.
  • Exploring how refrigerant chemicals can damage your system. 
  • Determining how thermostat malfunctions affect your communication with your system.
  • Defining how electrical problems can manifest. 
  • Exploring how infrequent maintenance can affect your system over time. 

Clogged or Dirty Air Filters

One of the most common HVAC problems is dirty or clogged air filters. These filters are responsible for trapping dust, pollen, pet dander, and other particles from the air, ensuring that the air you breathe is clean and healthy. Over time, filters can become clogged. Dirty air filters reduce airflow and force your HVAC system to work harder than it should. 

Solution: Regularly check and change your HVAC filters as needed, usually every one to three months, depending on usage and the type of filter you have.

Refrigerant Leaks

Refrigerants are the lifeblood of your air conditioning system because they allow your spaces to cool down effectively. Any leaks can result in reduced cooling efficiency and potential damage to HVAC compressors. Leaks are often caused by wear and tear or poor installation and cause damage because refrigerants are chemical substances.

Solution: If you suspect a refrigerant leak, it’s best to contact a pro. Reach out to a Palmetto Heating & Air technician to locate and repair the leak, then recharge your system with the appropriate amount of refrigerant.

Thermostat Issues

Your thermostat is the control center of your HVAC system. It allows you to communicate your household’s needs through simple inputs. If it malfunctions, it can lead to temperature inconsistencies or complete system failure. Common thermostat problems include inaccurate readings or unresponsive controls.

Solution: Ensure your thermostat is correctly calibrated and replace batteries if necessary. If problems persist, you may want to consult your local technician to repair or upgrade to a smart thermostat. 

Electrical Problems

HVAC systems rely on a complex network of electrical components, including wiring, circuit boards, and motors. Electrical problems can manifest as frequent system cycling, strange noises, or complete breakdowns.

Solution: Some things are better without DIY. If you notice any electrical issues with your HVAC system, it’s crucial to have them addressed promptly by a qualified technician to prevent further damage and ensure your and your home’s safety. 

Lack of Maintenance

Perhaps the most significant common problem is a lack of routine maintenance. Neglecting your HVAC system can lead to reduced efficiency, higher energy bills, and a shorter lifespan for your equipment.

Solution: Schedule regular maintenance with your local HVAC technicians at Palmetto Heating & Air! They will inspect, clean, and tune up your system to keep it running smoothly, identify potential issues before they become major problems, and optimize its performance. And with our Comfort Club, you won’t even have to worry about going out of your way. 


The experts at Palmetto Heating & Air are here to help you with all your HVAC woes. From common to complex, our technicians take proactive steps to address all HVAC problems with professionalism and expertise. Contact our HVAC experts today if you encounter any of these issues or need professional assistance in the Sun City, Hilton Head, Hardeeville, and Bluffton areas.