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The Right HVAC Unit for Your Home

A couple of months ago, the HVAC unit in my home started malfunctioning. The temperature inside my home soared to over eighty degrees Fahrenheit, even though my air conditioning system ran nonstop. After inspecting my air conditioning unit, my knowledgeable HVAC contractor recommended I purchase a new system. He discussed the pros and cons of installing different sizes of HVAC units with me. After considering my HVAC contractor’s advice, I decided to purchase a three and a half ton HVAC unit. Shortly after my HVAC contractor installed my new air conditioning unit, my house started feeling more comfortable. On this blog, I hope you will discover how an HVAC contractor can help you select the right air conditioning unit for your home. Enjoy!


The Right HVAC Unit for Your Home

System Won't Turn Off? What You Need To Know About Air Conditioning Repairs

by Jamie Shaw

Why won't your AC system turn off? Now that you don't need to use the air conditioner 24/7, you're ready to turn it off for at least part of the day. But your system doesn't want to stop. Take a look at what you need to know about this HVAC issue and air conditioning repair.

Possible AC issues

There isn't one issue that could cause an AC to stay on. Instead, your system may have one of many possible problems. The top culprits include:

  • The thermostat setting. Did you check the thermostat? Someone in your household may have set the temperature too low. This can force the system to stay on for longer than you would expect. If you suspect the setting is too low, raise the number to see if the system turns off.

  • The fan. What is the HVAC system's fan switch set to? If it's set to manual, the fan may continue to force air through the ducts long after the air conditioner turns off. This can make it seem like the AC is on.

  • The contactor. This AC part controls the flow of electricity. The contactor will block power from flowing into the system when you turn the air conditioner off. But if it's worn or damaged, it may not stop the electricity. 

Even though your air conditioner won't stop, you don't have to settle for a constantly chilly home interior. Now that you know more about the possible reasons behind your AC issue, it's time to take the next step and learn what to do about this problem. 

Possible AC Repairs

Which type of repair is the right choice for your home's AC system? The specific repair your air conditioner needs depends on the problem. If your system is stuck in the "on" mode, you're sure the thermostat is set correctly, and the fan isn't on manual:

  • Don't attempt to inspect or take apart the air conditioner. While it's tempting to try a DIY approach, you could put yourself, your home, or the system itself at risk. The air conditioner uses electricity, making it a potential shock or fire hazard if not handled correctly.

  • Call a professional. If you shouldn't repair the system yourself, who should? An air conditioner that won't turn off is a job for a licensed HVAC technician.

  • Weigh the options. Will a repair completely solve the problem? If the technician feels the issue is serious or it may cost you more to repair the problem than replace the unit, consider a new air conditioner.

The average lifespan of a central AC system is between seven and 15 years, according to the International Association of Certified Home Inspectors. If your system is older, worn, or will need more repairs in the near future, talk to the technician about a replacement unit.