When the North Carolina heat sets in, a reliable air conditioner is essential for keeping your home comfortable. But like any system, your AC can run into problems—especially during the busiest cooling months. The good news? Many issues have simple solutions. Below, our Comfort Pro experts in Cary, NC, highlight six of the most common air conditioner problems and how to fix them.
1. AC Won’t Turn On
If your air conditioner won’t start, the first thing to check is your thermostat. Make sure it’s set to “cool” and that the temperature is lower than your current indoor temperature. Also, check your circuit breaker to see if the AC has tripped. If neither of these solves the issue, you may need a professional to diagnose a more serious electrical or system problem.
2. Weak Airflow
Weak or limited airflow can be caused by clogged air filters, dirty coils, or blocked ducts. Replace your air filter every 1–3 months to help prevent buildup. If the problem continues, you may need an air duct cleaning or air duct sealing service to restore proper airflow.
3. Warm Air Blowing from Vents
If your AC is running but blowing warm air, you could be dealing with a refrigerant leak or a dirty condenser coil. Refrigerant issues require a licensed HVAC technician to repair safely. Regular AC Maintenance can help prevent this problem by keeping coils clean and refrigerant levels in check.
4. Strange Noises
Grinding, squealing, or rattling noises often mean there’s a mechanical issue inside your AC unit. Loose parts, worn-out belts, or debris inside the system can cause unusual sounds. It’s best not to ignore them—strange noises are usually an early warning sign that a repair is needed before a bigger breakdown occurs.
5. Water Leaks Around the Unit
Moisture around your AC can be caused by a clogged condensate drain line or a frozen evaporator coil. Clearing the drain line can sometimes solve the issue, but if the leak continues, you’ll want a professional inspection to avoid water damage to your home.
Consider upgrading with Whole Home Dehumidifiers to better control indoor humidity.
6. High Energy Bills
A sudden spike in energy costs often points to an inefficient AC system. Dirty filters, duct leaks, or lack of maintenance can make your AC work harder than it should. Scheduling regular tune-ups is one of the best ways to keep your system running efficiently and lower your monthly utility bills.
Check out this resource from the U.S. Department of Energy for more energy-saving tips.
Keep Your AC Running Smoothly with Comfort Pro
Don’t let small issues turn into costly repairs. At Comfort Pro, we provide expert AC repair, maintenance, and replacement services for homeowners across Cary, Apex, Holly Springs, Fuquay-Varina, and the surrounding areas.
Contact Comfort Pro today to schedule your service and keep your home cool all summer long.
