Updated: June 21st, 2024
ACs can keep you cool and comfortable during the warm weather months, but an AC that won’t shut off can be a real problem. It’s not only annoying, but it can also waste energy and drive up your utility bills. Below is a handy guide for troubleshooting a runaway AC unit.
Check the Thermostat
The thermostat controls the AC, so that should be your first area of concern if your AC won’t turn off. If the thermostat is switched to “cool” or set on a low temperature, simply switch the thermostat to “auto” and adjust the temperature to a more comfortable setting. If the AC still doesn’t turn off, the thermostat may be faulty, and you might need the help of a professional. Additionally, consider replacing old, outdated thermostats with newer programmable or smart thermostats for better control and efficiency.
Check for Blocked Vents or Filters
An AC might be unable to maintain the proper temperature if the air is unable to circulate properly. You can check the air vents and the AC filter for dust, dirt, or debris and clean or replace them as needed. If the vents are clogged, clear the obstructions to ensure proper airflow. If your air ducts are dirty, a professional can help clean or replace them to keep cool, conditioned air circulating throughout your home. Regular maintenance of your air filters and vents can not only prevent this issue but also improve your system’s overall efficiency and longevity.
Inspect the Condenser Unit
The condenser unit sits outside and releases heat from the AC system. If its fan is clogged or broken, it can cause the AC to run continuously. A professional should check that the condenser fan is running and not obstructed. They can repair or replace the fan to restore normal operation.
Check the Refrigerant Levels
Low refrigerant levels can cause the AC unit to work harder and run continuously in an attempt to cool your home. A professional HVAC technician can check the refrigerant levels and recharge the system if necessary. Leaks in the refrigerant lines can also be a culprit, which requires professional attention to locate and repair.
Check for Other Mechanical Issues
If the above steps don’t work, it’s best to call an HVAC technician to inspect the AC unit for other potential mechanical issues. The fan, compressor, or other internal parts could malfunction or break, requiring professional repair or replacement to get your AC back in good operating condition.
If you are looking for a professional HVAC company to help your AC get back to its life, reach out to Comphel Heating & Air Conditioning, Inc.. We are a professional HVAC company specializing in AC installation and repair, ductless air conditioning, furnace installation and maintenance, and heat pump installation in Sonora. Contact Comphel Heating & Air Conditioning, Inc. today to schedule an appointment.
