Why Is My AC Not Turning On?

ac not turning onIs your AC unit not turning on? There isn’t a worse way to spend a summer day than in a house with no air conditioning. The good news is it could be an easy fix. Here are some common reasons your AC unit won’t turn on.


Dirty Air Filter

Air filters trap dirt, dust, and other airborne contaminants and prevent damage to the HVAC equipment. However, when the filter is dirty and clogged, the airflow becomes impaired. When that happens, ice can form on the coils, causing the unit to shut down.


Dirty Coils

Dirt anywhere in or on your cooling equipment can lead to poor operation, but dirty coils can stop it in its tracks. The dirt prevents the coils from absorbing heat, so your air conditioner can’t turn on.


Leaking Refrigerant

The refrigerant is an essential part of your cooling system. It allows the unit to absorb heat and create cooled air that circulates through your home. Unfortunately, if there is a leak and the levels get low, the AC unit won’t turn on.


Malfunctioning Thermostat

The thermostat tells the HVAC system when to turn on and off to bring your home to the desired temperature. A thermostat that’s not functioning properly can lead to an AC unit that won’t turn on. Whether set improperly or simply needs new batteries, the thermostat is one of the most common causes and easiest fixes for an AC that isn’t turning on.


Why is your AC not turning on? There are many possible explanations. Contact the team at Hill Plumbing and Air to schedule service and repair and get your HVAC system back in action so you can enjoy your summer.

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For more than 95 years, Hill Plumbing and Air has built a rock solid reputation by providing the highest quality plumbing services in Sumter, Florence and surrounding areas. We're now pleased to offer Heating and Air services to better serve our customers.

"DREW did a great job on my HVAC SVC!!!!! Many thanks to you DREW !!!! For helping me breathe on the hottest day of 2021!!!!!!! And thanks to MIKE for the great job repair the flooding under my house!!!! Thanks HILL plumbing for the best service my home and I ever had."

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