The answer to 'why is my AC freezing up' is that there are several common causes, including low refrigerant levels, a dirty air filter, or a mechanical issue. When an AC unit freezes up, it can restrict airflow and cause the system to work harder, leading to higher energy bills and potential damage.
Some of the most common symptoms of a freezing AC unit include ice buildup on the coils, reduced airflow from the vents, and the compressor cycling on and off frequently. To fix a freezing AC, you'll need to identify and address the underlying cause, which may require cleaning the coils, replacing the air filter, or recharging the refrigerant. In some cases, you may need to call a professional HVAC technician to diagnose and repair more complex issues.