A well-functioning HVAC system should operate quietly in the background, keeping your home comfortable without drawing attention to itself. If unusual sounds are coming from your HVAC system, especially if they seem to be getting louder over time, it could be a sign that something is not quite right.
Our experts at C. Lee Services discuss the different types of noises that an HVAC system might make and what they could mean, helping homeowners understand when to call for professional HVAC services in Stow, OH.
Banging or Clanking
These types of sounds often point to a loose or broken component inside the system. In furnaces, this noise may come from an unbalanced blower wheel or a loose motor mount. In air conditioners, it could mean a compressor issue or loose parts in the outdoor unit. Turning off the system and checking for visible loose components can help, but a professional should always handle internal HVAC repairs.
Whistling or Hissing
A high-pitched whistling or hissing sound usually indicates an airflow problem or a refrigerant leak. In the case of an airflow issue, it could be a clogged air filter or blocked vents. Replacing the air filter and making sure all vents are open and unobstructed can help resolve this situation. However, if there is a refrigerant leak, it is important to call for professional HVAC services immediately, as trained technicians are equipped to safely take care of this issue.
Clicking or Tapping
Some clicking sounds are normal when the system turns on and off. However, if clicking is constant, it might be due to a faulty thermostat, relay, or electrical component. Tapping sounds could also come from an obstruction in the blower fan. Checking the thermostat and removing visible debris may work, but electrical problems should be handled by an experienced HVAC technician.
Screeching or Grinding
A screeching or grinding noise usually signals a mechanical problem, such as a worn-out belt or failing motor bearings. If left unaddressed, these issues can lead to more significant damage. Lubricating bearings or replacing worn parts may be the solution, but professional service is recommended.
If you have any concerns about the noises from your heating and cooling system, it is always best to err on the side of caution and call for expert assistance. Our technicians at C. Lee Services are trained to diagnose and repair any HVAC issue, keeping your system running efficiently for years to come. Contact us today to schedule an appointment.
