Inspect and Replace Air Filters
Clogged or dirty air filters can restrict airflow, making your AC less effective at cooling. To keep your system running efficiently, check your filters once a month and replace them at least every 90 days. Clean filters improve indoor air quality.
Examine the Thermostat Settings
Ensure your thermostat is set to cooling mode and the desired temperature is lower than the current room temperature. If your air conditioner isn’t functioning properly, a malfunctioning thermostat might be the cause. Think about switching to a smart thermostat for improved energy efficiency and greater control over your home’s climate.
Clean the Condenser Coils
Over time, your outdoor condenser unit collects dirt, leaves, and debris that hinder performance. Switch off the power and carefully wash the coils with a hose to maintain efficient heat transfer. Clean coils help prevent the issue of AC not cooling during peak temperatures.
Check Refrigerant Levels
Low refrigerant is a common reason for air conditioner not working properly. Warning signs include warm air from vents or ice on refrigerant lines. Only licensed professionals can check and recharge refrigerant, so don’t attempt this part yourself.
Clear the Condensate Drain Line
A clogged drain line can back up moisture and even cause water damage indoors. Using a vinegar and water solution to flush it out can help stop mold and blockages from forming. This small step can protect your system from unwanted shutdowns during hot months.
Inspect Ductwork for Leaks
Leaky ducts waste cool air and reduce efficiency. Check ducts for any damage, cracks, or gaps. Sealing leaks can drastically improve performance and may solve minor AC not cooling complaints in certain areas of the home.
Test the System’s Cooling Performance
Once you’ve done the basics, turn on the system and let it run. Pay attention to airflow strength, how quickly it cools the space, and whether temperatures stay consistent. If anything seems off, you might be facing an air conditioner not working scenario.
Schedule a Professional Maintenance Check
Regular maintenance by HVAC professionals helps maintain optimal performance and improve energy efficiency. They’ll inspect components, recharge refrigerant, and identify issues before they cause your AC to fail altogether.

Conclusion
Preparing your air conditioning system for the Texas summer is crucial for maintaining comfort and efficiency. By following this checklist, you can address common issues that lead to your AC not cooling and ensure your home stays cool all season long.
Don’t wait until your air conditioner not working leaves you in the heat! If you’re looking for dependable AC services nearby, visit On Point Service Company today. Our expert technicians are here to make sure your cooling system is ready for anything the Waco summer throws at it.