If your air conditioner seems to be running nonstop—even when your home feels cool—you’re not alone. Many homeowners call Premier with the same concern: “Why won’t my AC turn off?” This is more than just an annoyance. An air conditioner that runs too long or too often can drive up your energy bills, wear down system components, and eventually lead to a costly breakdown. It may even be a sign that an AC upgrade is overdue.
Why won’t my AC shut off?
• Thermostat misreads the temperature due to poor placement or calibration
• The HVAC system is incorrectly sized, too small runs constantly, too large cycles inefficiently
• Dirty filters or coils restrict airflow, forcing long run times
• Low refrigerant, often from a leak, reduces cooling efficiency and prolongs operation
• Heat escapes through poor insulation or leaks, making the system work harder
This issue is known as “short cycling” or “runaway cooling,” and it’s often a sign that something deeper is going on with your system. At Premier, we specialize in diagnosing and AC repair in Perry, GA. Here’s a look at the most common causes—and what you can do about it.