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The Unseen Culprits: 5 Common Reasons Your AC Is Blowing Warm Air

Staying cool is crucial in the blistering heat of Atlanta. Suddenly finding your air conditioning unit blowing warm air can be a cause for alarm. The central purpose of your AC is to provide relief from the heat, so when it does the exact opposite, it turns into an issue. Is your AC crying out for AC repair in Atlanta? Let’s explore 5 common reasons why your AC might be blowing warm air and what you can do to fix it.

AC Is Blowing Warm Air

1. Thermostat Settings

Ironically, sometimes the culprit behind your AC blowing warm air is a mere setting issue on the thermostat. Ensure that the thermostat is set to “cool” and not “heat” by mistake. Also, it’s vital to verify that the fan setting is set to “auto” and not “on.” When set to “on,” the fan runs continuously, blowing air even when the AC isn’t cooling it.

2. Clogged Air Filters

Air Filter clogging is a bane for an AC system. A clogged filter restricts the airflow, which hampers the AC’s cooling capacity. Regularly cleaning or changing the filters can fix this issue. However, if the warm air continues after the filter changes, it may be time to seek professional help.

3. Low Refrigerant Levels

Refrigerant is an essential component of your AC, which absorbs the heat from indoors and releases it outdoors. If the refrigerant level drops, mostly due to a leak, your AC might start blowing warm air. It’s highly advised to get professional servicing done, as fixing refrigerant leaks is not a DIY job.

4. Dirty Condenser Coils

Condenser Coils are located on the outside unit of your Air Conditioner. If not properly maintained, these could get clogged with dirt, hindering the heat dissipation process. Hence, a crucial yearly servicing is recommended for your AC unit.

5. Compressor Issues

Last but not least, issues with the Compressor— the heart of your AC unit can also lead to your AC blowing warm air. Any malfunction of the compressor would require an immediate intervention of professional AC repair services.

Always bear in mind that your AC unit is a complex appliance. While some initial troubleshooting at your end can be done, the smart move would be to leave the intricate details to experts when major problems arise.

If you notice any signs you need to repair your air conditioner such as warm air being produced, or other issues hampering your comfort at home, it is best to promptly address them with professional AC repair services.


It’s more than just discomfort when your AC blows warm air on a hot summer day; it’s signaling potential issues. While some fixes are simple, others require professional intervention. This post should give you an initial briefing on tackling your AC problems, but remember, it’s always best to call for expert assistance.