Is Your Air Conditioner Ready for Late Summer Heat? Key Maintenance Tips

1. Check and Replace Your Air Filters
One of the simplest yet most effective maintenance tasks is checking and replacing your air filters regularly. Dirty or clogged filters can restrict airflow, forcing your AC to work harder and reducing its efficiency. As a general rule, you should replace your filters every 1-3 months, especially during peak cooling seasons. Clean filters not only improve airflow but also enhance indoor air quality by trapping dust, pollen, and other airborne particles.

2. Clean the Condenser Coils
The condenser coils, located in the outdoor unit, are responsible for releasing the heat absorbed from inside your home. Over time, these coils can accumulate dirt, debris, and grime, which can insulate the coils and reduce their efficiency. Late summer is a great time to inspect and clean your condenser coils. Use a garden hose to gently wash away dirt and debris, ensuring the coils are free from obstructions.

3. Inspect the Thermostat Settings
Your thermostat plays a crucial role in maintaining the comfort of your home. Late summer is a good time to check your thermostat settings and ensure they are optimized for energy efficiency. Consider raising the temperature a few degrees when you’re not at home to reduce the strain on your AC. If you’re using a programmable or smart thermostat, make sure it’s set to adjust the temperature according to your schedule.

4. Ensure Proper Airflow Around the Outdoor Unit
Your outdoor AC unit needs adequate airflow to function efficiently. Late summer is when plants, grass, and other vegetation are in full bloom, which can sometimes block airflow around the unit. Trim any overgrown bushes, grass, or weeds near the unit, and make sure there’s at least two feet of clearance on all sides. This allows the system to expel heat more effectively and prevents overheating.

5. Check the Refrigerant Levels
Low refrigerant levels can lead to reduced cooling efficiency and even cause your AC to blow warm air. If you notice that your AC isn’t cooling as effectively as it should, or if you hear hissing noises from the outdoor unit, it could be a sign of a refrigerant leak. While checking refrigerant levels and fixing leaks should be handled by a professional, it’s important to be aware of these signs and address them promptly.

6. Inspect and Clean the Drain Line
The drain line is responsible for removing the moisture your AC system extracts from the air inside your home. Over time, this line can become clogged with algae, mold, or debris, leading to water backups and potential damage to your system. To prevent clogs, regularly inspect the drain line and clean it by flushing it with a mixture of water and vinegar.

7. Listen for Unusual Noises
Your AC should operate relatively quietly, with only the sound of the fan and compressor running. If you hear any unusual noises like banging, rattling, or squealing, it could indicate a problem with the motor, fan blades, or other components. Don’t ignore these sounds; addressing them early can prevent more significant issues down the line.

8. Schedule a Professional Maintenance Check
​Even with diligent DIY maintenance, it’s essential to have your AC system professionally inspected at least once a year. Late summer is an ideal time to schedule a tune-up before the demands of the cooling season wind down. A professional technician can identify potential issues, optimize system performance, and ensure that your AC is ready for the remaining summer heat.

Keeping your air conditioner in peak condition during the late summer heat is essential for maintaining home comfort and avoiding costly repairs. By following these maintenance tips, you can ensure your AC runs smoothly and efficiently throughout the season. If you need professional assistance or a thorough AC tune-up, Air Comfort Heating & Air Conditioning is here to help. Our experienced technicians are ready to keep your system performing at its best.