Why Your AC is Running Constantly

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Why Your AC is Running Constantly

Does it seem like your AC is always running? Does it feel like your home can never get cool enough when it’s hot outside? If so, you may be in need of AC repair or AC replacement. Below are some reasons why air conditioners run constantly.


Even if your AC is brand new and the air flowing from it feels cool, if your system isn’t large enough for your home, you won’t be able to reach the thermostat temperature on hot days. This will cause your AC to run nonstop, which can reduce the pressure in the evaporator coil until it freezes over and causes expensive damages.

What should do?
• Have a professional conduct a heat load calculation to determine what size system your home needs.


Your AC may be running constantly because it can’t supply your home with enough cool air due to restricted airflow.

What you should do:
• Change your air filters regularly.
• Open all vents, even in rooms you’re not using.
• Make sure no vents are blocked by curtains or furniture.
• Determine if your ducts are leaking and/or need to be cleaned.


Refrigerant is the lifeblood of air conditioners. If your AC isn’t blowing cool air, your refrigerant may be low due to a leak.

What you should do:
• Have your refrigerant levels checked by a professional.


Located in the inside unit, the evaporator coil absorbs heat in the air, while the condenser coil, located in the outside unit, disperses it. If these are dirty, it can prevent the absorption of heat in your home and the dispersion of heat outside it, causing your AC to run constantly.

What you should do:
• Schedule an AC maintenance visit to determine if your units need to be cleaned.