AC Blowing Warm Air

Why Is My AC Blowing Warm Air?

Chattanooga summers can be unbearable! We rely heavily on our air conditioning system to keep us cool, but what happens when your air conditioning system starts blowing warm air? There are a few reasons that can explain the change in temperature with your system. Keep in mind, performance and efficiency are the greatest when all refrigerant levels are up to the manufacturer’s specification. Having too little or not enough refrigerant can be harmful to both your air conditioning system as well as the environment. Below are a few reasons your Chattanooga AC may be blowing warm air.

Check Your Thermostat

When your AC is blowing warm air, it doesn’t always mean trouble. It is common to accidentally select “heat” or “fan” while changing settings on your thermostat. When your thermostat displays “ON”, it means the fan is “ON” and constantly blowing, not necessarily meaning that the system is set to “cool”. First, be sure your thermostat is set at “COOL”.

Outside Unit Clogged

Your whole-house AC system is composed of two units; an inside unit (air handler) and an outside unit (condenser). Both units must work together to eliminate and remove the heat that is penetrating your home. For this to happen, the outside unit needs unrestricted air flow. Check the area around the outside condensing unit and be sure the area is clean of debris, dirt, leaves, sticks, etc.

Frozen AC Unit

As uncommon as you may think, an air conditioner is able to freeze. In fact, it can freeze into a solid block of ice. Many people find it had to understand how it could blow be blowing warm air if the system is frozen. The actual frozen component is the evaporator coil. This is what removes the heat from the air flowing through it, thus providing the cool air you feel. Condensation is normally on the evaporator coil, which is the humidity being removed from your home, along with the heat. If a homeowner is attempting to cool their home with a dirty filter, that is restricting airflow, the coil could drop below 32 degrees and start to freeze the moisture (humidity) on the coil.

Refrigerant Leaks

Leaks are unfortunately a very common malfunction. Refrigerant leaks can be caused by any number of things and in most cases can be fixed. You should always contact AC Today, if you suspect a problem. You should never try to handle or DIY service for your refrigerant as it is very dangerous. Freon coolant, R-22 or R410-A refrigerant, are types of chlorofluorocarbons that will evaporate as a gas if there is a leak in the system. If it leaks into your home, it can cause a variety of health issues, including headaches, minor loss of memory, nausea, and in extreme cases asphyxiation. Since your air conditioner is not consuming any coolant, there is no need for refilling unless there’s a leak. There are hundreds of joints, connections and valves in a standard air conditioner. Over time, these components can have normal wear and tear which could cause them to weaken and a problem to occur.

If any of the above issues happen to you, call Bailey’s Heating and Air Today. During our service inspection, we will measure refrigerant levels, inspect all components for proper functioning, and clean the coils.