How to Prep Your AC for Summer in Central Texas

As summer approaches in Central Texas, your air conditioner is about to work overtime. With temperatures regularly climbing into the 90s and beyond, preparing your AC system before the heat arrives can help improve efficiency, lower energy bills, and reduce the chances of a mid-summer breakdown.

At McCullough Heating & Air Conditioning, your local go-to heating and cooling crew, better known as the plaid guys, we recommend taking a few simple steps each spring to make sure your cooling system is ready for the hot, Austin weather and season ahead.

Let’s start by stepping outside. 

Clear Debris Around Your Outdoor Condenser Unit

Your outdoor condenser unit needs plenty of airflow to operate efficiently. Over time, leaves, grass clippings, dirt, and overgrown plants can block airflow and force your system to work harder than necessary.

To help your AC perform at its best:

• Remove leaves, weeds, and debris around the unit
• Keep at least 2 feet of open space around the condenser
• Check to make sure the unit is sitting level
• Gently rinse the condenser coils with a garden hose to wash away dust and dirt buildup

Cleaning the coils and maintaining proper airflow can improve energy efficiency and help your system cool your home more effectively during the hottest months of the year.

Next, go inside, where there are a few easy steps to help prepare. 

Check and Replace Your Furnace Filter

Even though it’s called a furnace filter, this component plays a major role in your air conditioning system as well. A dirty filter restricts airflow, making your HVAC system work harder to cool your home.

If your filter looks dirty, replace it. This simple maintenance step can:

• Improve system performance
• Lower energy bills
• Reduce wear and tear on your equipment
• Improve indoor air quality

Most homeowners should inspect their filter every 30–90 days, especially during peak cooling season. Find replacement filters. 

Inspect Your Home’s Air Vents

Walk through your home and check all supply and return vents. Proper airflow is essential for keeping your home comfortable and helping your AC run efficiently.

Make sure vents are:

• Open and unobstructed
• Free of dust and debris
• Not blocked by furniture, rugs, or curtains…toys

Cleaning dusty vents and improving airflow can help eliminate uneven temperatures and reduce strain on your HVAC system, plus it can help keep a steady stream of cool air flowing.

Check Your Thermostat Settings

Before summer temperatures arrive in full force, test your thermostat to make sure it’s functioning correctly. If your thermostat is outdated, upgrading to a programmable or smart thermostat can help improve comfort and energy savings.

Smart thermostats allow homeowners to:

• Automatically adjust temperatures throughout the day
• Reduce cooling costs while away from home
• Monitor system performance
• Control settings remotely from a smartphone

Setting your thermostat a few degrees higher when you’re away can help reduce strain on your AC system and lower monthly utility bills.

Listen for Unusual Noises

Your air conditioner should operate relatively quietly. Strange sounds can be an early warning sign of mechanical problems.

Common AC Noises to Watch For:

• Banging or clanking
• Buzzing
• Grinding
• Squealing
• Rattling

Ignoring unusual sounds can allow small issues to become major repairs. If your system sounds different than normal, it’s best to schedule an inspection before summer demand puts extra stress on the equipment.

Test Your AC System Early

One of the biggest mistakes homeowners make is waiting until the first extremely hot day to turn on their air conditioner. Always test your system early in the season while temperatures are still mild.

Turn your thermostat to cooling mode and make sure:

• Cool air is coming from the vents
• Airflow feels strong and consistent
• The system turns on and off properly
• There are no unusual noises or odors

Catching problems early gives you time to schedule repairs before HVAC companies become overwhelmed during peak summer demand.

Schedule an Annual AC Tune-Up

Routine professional maintenance is one of the best ways to extend the life of your air conditioning system and prevent costly breakdowns.

During an annual AC tune-up, a licensed technician can:

• Check refrigerant levels
• Inspect electrical components
• Clean coils and system components
• Test airflow and cooling performance
• Identify worn or failing parts
• Ensure your system is operating safely and efficiently

Annual maintenance helps improve comfort, maximize efficiency, and reduce the risk of unexpected repairs during the Texas summer heat.

Stay Cool with McCullough Heating & Air Conditioning

At McCullough Heating & Air Conditioning, we help Central Texas homeowners stay comfortable all summer long. Whether you need seasonal maintenance, AC repairs, or a complete system replacement, our experienced team is here to help.

Preparing your AC system before temperatures rise can save money, improve comfort, and give you peace of mind all season long.

Contact McCullough Heating & Air Conditioning today online or call 512-798-0839 to schedule your annual AC inspection and get your home ready for summer.