San Marcos is a charming college town filled with beautiful rivers for paddling, fascinating museums, great restaurants, and of course, the largest outlet mall in the country.
It’s an incredible place to live—especially when your HVAC system is running smoothly.

One of the best ways to ensure your air conditioner performs at its best is to have it professionally inspected once or twice a year. Routine maintenance helps prevent issues such as rapid cycling, warm air instead of cold, or unexpected leaks.

Here are some common problems to watch for:

Dirty Air Filter

One inch air filters should be replaced every few months.
High quality four inch filters should be replaced yearly.

Failing to replace filters regularly can lead to:

• Weak airflow

• Higher energy consumption

• Reduced indoor air quality

Refrigerant Leak

Your AC relies on refrigerant to cool your home. Signs of a leak include:

• Hissing sounds

• Increased humidity

• Slower cooling cycles

• Visible oily or dark spots on the outdoor unit

Water Leak

Without regular AC maintenance, the condensate drain line can clog with debris, mold, or bio growth. When this happens, water may begin leaking around your indoor unit.

Tripped Circuit Breaker

If your AC trips the breaker, possible causes include:

• Low refrigerant levels

• Loose or damaged electrical connections

• A clogged air filter restricting airflow

These issues require prompt attention to prevent system damage.

Thermostat Issues

If your thermostat isn’t working properly:

• Check that it has power

• Switch it to cool or auto mode

• Replace batteries if the display is blank

Freezing Condenser Coils

The condenser coils release heat outdoors. When frozen, they can’t perform this essential function. Causes include:

• Dirty air filters

• Refrigerant leaks

Annual maintenance is the best protection against frozen coils.

Weird Noises

Loud or unusual sounds are a clear warning sign. Turn the system off immediately and call a professional to prevent further damage.

How AC Problems Affect Your Home

Ignoring air conditioning issues can lead to:

• Water stains on walls or ceilings

• Mold and mildew growth

• Increased energy bills

• Poor indoor comfort

San Marcos weather can fluctuate quickly. Some days you may need heat in the morning and cooling by afternoon. During these transitions, always double check that your system is set to cool or auto when switching modes.

For more information about our Comfort Advantage Club maintenance program or if you have questions about your air conditioning system, contact the experts at Comfy Air today.