AC system

Why is My AC Blowing Warm Air in Gallatin, TN?

June 21, 2023

You need reliable air conditioning to make it through a Gallatin, TN, summer. If your AC is only blowing warm air, the problem could be a dirty HVAC filter or a more serious issue. Here are some reasons that cause air conditioning systems to blow warm air.

You Need to Change the Filter

A dirty, clogged filter causes airflow issues, which can quickly cause your AC unit to blow warm air. Fortunately, replacing a filter isn’t a difficult or expensive job. It costs less than $20 and takes seconds to replace. Replacing a filter every 30 to 90 days not only keeps your home cool but helps your AC unit do its job better with less wear and tear. Simple maintenance, like replacing the filter, goes a long way toward extending the longevity of your air conditioner.

You Need More Refrigerant

An air conditioner that’s leaking cooling chemicals will blow warm air and won’t ever reach the desired temperature you’ve set your thermostat to reach. The best way to determine if a leak is the problem is to call qualified HVAC specialists to inspect the AC. Replacing or recharging refrigerant isn’t a do-it-yourself task.

The Condensate Line Is Clogged

This line is an essential part of your home’s air conditioner. It’s responsible for removing moisture from the system to prevent excessive humidity levels in your home. As warm air moves over the evaporator coils, condensation forms and falls into the drain pan, then goes into the condensate line which takes the water to the outside of your home. Typically, the condensate line is the white pipe coming out of your home near the compressor that drips water when your AC is running. However, a clogged condensate line can’t remove humidity effectively, resulting in warm air blowing from the AC. If your condensate line is not dripping, there could be a clog. You can use a shop vac to extricate the clog or call us to clear the line.

Your home should offer relief from summer’s heat and humidity. It shouldn’t feel like a sauna. If your AC blows warm air and you’ve changed the HVAC filter, contact our team of expert HVAC specialists at Derryberry’s Heat & Air to schedule air conditioning services.

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