Why Your AC Isn’t Cooling in Wake County NC

When your air conditioner isn’t cooling your home, it can be frustrating—especially during the hot and humid summer months in Wake County. We know how you feel and can help quickly when this happens. Whether it’s blowing warm air, struggling to maintain temperature, or not turning on at all, there are several reasons why your home air conditoner might be failing.

Comfort Pro Serves Cary, Holly Springs, Apex and Fuquay-Varina 24 Hours a Day

Here are the top reason we see when we visit homes in Wake County and why your AC unit isn’t cooling your home. These are the most common causes and some DIY solutions to help you restore comfort to your home, quickly.

Clogged or Dirty Air Filters Restricting Airflow

A clogged air filter can severely impact your AC’s cooling power. Dirty filters block airflow, causing your system to work harder and cool less effectively. Homeowners in Wake County, should replace or clean their filters every one to three months—especially during peak summer usage. If you are using your AC more often, you may want to replace them monthly if it’s not cooling like you think it should be.

Incorrect Thermostat Settings or Malfunctions

Before assuming there’s a major issue, check your thermostat settings. Ensure that it is set to “Cool” mode and that the temperature is set lower than the current room temperature. If your thermostat runs on batteries, replace them. Also, check for software glitches in smart thermostats that could be misreading the room temperature.

Low or Leaking Refrigerant is a Common Cooling Failure

Refrigerant is essential for cooling, and if your system has a leak or is low on refrigerant, your AC won’t cool properly.

Signs of low refrigerant include:

• Warm air blowing from vents
• Ice buildup on the refrigerant lines
• Hissing noises near the unit

Refrigerant issues require professional HVAC repair. If you suspect a leak, call Comfort Pro at 919-629-3636 . We’re have local certified AC technicians available 24 hours a day to help.

Dirty or Blocked Condenser Coils Preventing Heat Release

Your outdoor condenser unit expels heat from your home, but if the coils are covered in dirt or debris, it won’t function efficiently. Regularly inspect and clean the condenser unit, making sure there’s no buildup blocking the airflow.

Blocked, Disconnected, or Leaky Ductwork

Leaky or obstructed ducts can significantly reduce cooling efficiency. If certain rooms feel warmer than others, or if you notice weak airflow, your ducts might need sealing or cleaning. Comfort Pro can inspect and fix these type of duct issues.

Frozen Evaporator Coils Halting Cooling Power

If your AC unit is running but not cooling, your evaporator coils might be frozen. Restricted airflow, dirty filters, or low refrigerant can cause this problem. Turn off your AC to allow the coils to thaw, and check for airflow restrictions before restarting the unit.

Your AC Unit Might Be Too Small or Aging Beyond Its Capacity

If your HVAC unit is undersized for your home’s square footage, it will struggle to cool effectively. You’ve probaby noticed this over the years. Additionally, an older unit may no longer have the efficiency to keep up with demand. Comfort Pro can assess your home’s cooling needs and recommend the right unit size or an energy efficient upgrade replacement if needed.

Inadequate Routine HVAC Maintenance Causing Declining Efficiency

Skipping seasonal AC maintenance can lead to efficiency problems. Scheduling yearly HVAC tune-ups in the early Spring and Fall can ensure your heating and cooling system remains in top shape, preventing unexpected breakdowns and possibly costly repairs.

Electrical Failures, Tripped Breakers, or Faulty Capacitors

Every once in a while electrical failures, tripped circuit breakers, or faulty capacitors can prevent your air conditioner from functioning correctly. If your system is not turning on, check your electrical panel and reset any tripped breakers.

When to Call a Professional HVAC Company Near You

If you’ve checked the basic troubleshooting steps above and your AC system still isn’t cooling, it’s time to call a local AC Contractor. Professional technicians can diagnose and fix issues such as refrigerant leaks, electrical failures, and faulty components.

Restore Cool Comfort to Your Home Quickly

Dealing with an air conditioner that isn’t cooling your home can be stressful, but understanding the potential causes can help you quickly restore comfort.

Whether it’s a dirty filter, refrigerant issue, or electrical problem, addressing these common problems will ensure your home stays cool all summer long. If our DIY troubleshooting solutions doesn’t solve the issue, don’t hesitate to contact Comfort Pro online or call 919-629-3636 for expert repair, replacement and maintenance services in Wake County, NC.