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Why is My AC System Blowing Hot Air?

Is the air conditioning system in your Arlington, Virginia, home blowing warm air? If so, it won’t be able to keep up with the summer temperatures and humidity levels. Here are three possible reasons your AC system is blowing hot air:

Bad Thermostat

The thermostat is the point of communication between you and your HVAC system. When you set up a schedule or lower the desired temperature, the thermostat should send an electrical message to the cooling system to cycle on and start removing heat from the air until it reaches the temperature. When the system is blowing hot air, the thermostat could be to blame. It may be sending improper signals to the system or measuring the wrong temperature. As a result, the AC system won’t produce cool air.

Airflow Restriction

A restriction in airflow may also be the cause of hot air moving through your vents. When this occurs, it can cause the compressor to freeze up. The compressor sits in the outdoor unit and is necessary for proper cooling functionality. One cause of restricted airflow is a dirty filter, which is an easy fix. Simply replace the clogged filter for a new one in the same size. As a result, the air should be able to move through it easily.

If you’re not keeping up with regular AC maintenance, you may have a damaged component or clogged ducts that a service technician needs to fix. Routine maintenance is the best way to protect your cooling system and extend its lifespan.

Low Refrigerant

Refrigerant is an essential part of the cooling process, as well. When your system is low on refrigerant, it won’t be able to maintain a cool, comfortable atmosphere. Only a skilled service technician should handle refrigerant. Doing so yourself will risk personal injury.

At Brennan’s Heating & Air Conditioning, we can diagnose and repair AC system problems. Call us at 703-783-0145 for fast assistance.

Image provided by iStock

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