Air conditioners can sometimes stop working properly, leading to discomfort, especially in hot weather. While some issues require professional repair, many AC problems can be fixed with simple troubleshooting steps. Before calling an HVAC technician, try these common fixes to see if you can get your AC back up and running. Please visit ac repair atlanta

1. AC Won’t Turn On

If your AC unit doesn’t power on, check the following:

  • Ensure the thermostat is set correctly and batteries are working.
  • Check the circuit breaker—a tripped breaker may be preventing power from reaching the AC unit.
  • Inspect the power switch on the indoor and outdoor units to ensure they are turned on.

2. AC Blowing Warm Air

If your AC is running but not cooling properly, possible causes include:

  • Dirty air filter—A clogged filter can restrict airflow. Replace or clean it if necessary.
  • Low refrigerant levels—If you notice weak cooling or ice on the coils, there may be a refrigerant leak. A professional will need to handle this repair.
  • Incorrect thermostat settings—Ensure the thermostat is set to “cool” and at the desired temperature.

3. Weak Airflow from Vents

Poor airflow can make your AC inefficient and reduce cooling performance. Check for:

  • Blocked or closed vents—Ensure all supply and return vents are open and free from obstructions.
  • Dirty evaporator coils—Dust and debris buildup can restrict airflow. Cleaning the coils can restore efficiency.
  • Duct leaks—Air leaks in ductwork can reduce airflow. If you suspect leaks, a professional can perform a duct inspection and sealing.

4. Unusual Noises from the AC Unit

Hearing strange sounds from your AC? Here’s what they could mean:

  • Banging or rattling—This could indicate loose parts, such as a fan blade or motor mount.
  • Buzzing or humming—Electrical issues or a failing compressor could be the cause.
  • Whistling or hissing—A refrigerant leak or ductwork issue may be the problem.

If you hear persistent noises, turn off the AC and call a technician to prevent further damage.

5. Water Leaking from the AC Unit

Water leaks around your AC unit can be caused by:

  • A clogged condensate drain line—Dirt and mold buildup can block the drainage path, causing water to overflow. Cleaning the drain line can fix this issue.
  • Frozen evaporator coils—Low refrigerant levels or airflow problems can cause ice buildup, leading to leaks when the ice melts.

6. AC Running Constantly

If your AC runs continuously without turning off, it could be due to:

  • A faulty thermostat—Check the settings and replace the thermostat if necessary.
  • Dirty condenser coils—Outdoor coils covered in dirt or debris can prevent proper heat dissipation, causing the AC to work harder.
  • Undersized AC unit—If your AC is too small for your home, it may struggle to maintain the set temperature.

When to Call a Professional

If troubleshooting doesn’t resolve the issue, it’s best to call an HVAC technician. Problems like refrigerant leaks, electrical failures, and compressor malfunctions require professional repair. Regular maintenance can help prevent these issues from occurring in the first place.

Conclusion

Before calling an AC technician, try these troubleshooting steps to identify and fix common issues. Simple solutions like replacing filters, checking thermostat settings, and cleaning coils can restore your AC’s functionality. However, for more complex problems, professional assistance is necessary to ensure a long-lasting and efficient cooling system.