There are several reasons why your AC may not be blowing cold air. Whatever the reason—don’t ignore it or put off repairs! A broken air conditioning unit is not only an inconvenience, but a major health concern during our HOT-lanta summers. Here are a few AC problems you can solve yourself:

  • Thermostat: Does your air conditioner sometimes blow cold air and sometimes blow hot air? Check to see if your thermostat is set to “on” (runs the fan 24/7 even when the air isn’t being cooled) instead of “auto”. Set the temperature to at least 5 degrees below your room temperature. Check that any wiring and batteries are connected and working properly.
  • Dirty Air Filter: The air filter strains particles from your indoor air supply, but when it fills to capacity, the amount of air allowed into your central air system diminishes. A dirty air filter could also freeze your evaporator coil, turning it into a block of ice and preventing any cool air from going into your home. Check your air filter and clean or replace it if necessary.
  • Dirty Condenser: Your air conditioner’s indoor unit (the evaporator) absorbs the heat from inside your home, and then transfers that heat to the outside unit (the condenser). If the condenser is dirty or covered in debris it cannot release this built up heat. After shutting off the unit, trim back weeds, branches, or bushes and gently spray the outside of the unit with a hose. Do not use a high setting, it will bend the aluminum fins inside.
  • Electrical and circuit breaker: Is electricity going to your air conditioner? Check switches by the outside unit, at the air handler in the inside unit, and at fuses or circuit breakers in the electrical panel. Air conditioners require large surges of power, sometimes causing blown fuses and tripped breakers. If the circuit breaker keeps cutting power to your AC, it is telling you something is wrong and it’s time to call an air conditioning professional.
  • Ice buildup: Dirty coils and filters or a lack of refrigerant can cause an ice buildup. Clean the filter and coils to improve air flow and run the unit with just the fan in order to melt the ice off.
  • Clogged drain: Your air conditioner’s hose or drain pipe can become clogged with algae and cause your unit to shut down (a safety feature to prevent water from backing up into your home or unit). Replace or clean the piping with a mild bleach solution.

When to Call the Professionals at Cochran Cooling & Heating

While you can troubleshoot the above problems to get results when your AC is not blowing cold air, there are problems that you should definitely leave to a professional such as: broken condenser fans, refrigerant leaks, faulty compressors, and damaged air ducts. The professional team of technicians at Cochran Cooling & Heating can perform any repairs your AC system needs to keep it running in top condition this summer. It is also important to schedule regular maintenance on your AC to stay on top of any issues before they become serious, which is why we offer our special preventative maintenance program. Request a free estimate or contact us today!