As summer winds down in the Central Valley, your air conditioner has likely been working overtime to keep your home cool. Long stretches of hot days put extra strain on your system, which makes this the perfect time to give it some well-deserved attention. Even though fall is around the corner, the late-summer heat can still push your AC hard. A few simple maintenance steps can help you maintain comfort now, prevent breakdowns, and prepare for the season ahead.
At Purl’s, we’re here to share our top end-of-summer air conditioning maintenance tips—and to remind you that it’s never too late to schedule professional service.
1. Change or Clean Your Air Filter
Your air filter works all summer to trap dust, pollen, and debris. By the end of the season, it’s likely clogged, which reduces airflow and makes your AC work harder. A dirty filter can also increase energy costs and strain components. Check your filter now and replace it if it’s disposable or clean it if it’s reusable. Regular filter changes every 1–3 months are one of the simplest ways to protect your system and improve indoor air quality.
2. Clear Debris From the Outdoor Unit
After months of operation, your outdoor condenser may be surrounded by dirt, leaves, and grass clippings. This buildup can restrict airflow and lower efficiency. Gently clear away debris from around the unit and make sure there’s at least two feet of open space on all sides. If the fins are visibly dirty, schedule a professional cleaning to ensure optimal heat transfer.
3. Check for Unusual Noises or Odors
Listen for any rattling, grinding, or buzzing sounds while your AC is running. These noises can indicate loose parts, worn components, or electrical issues. Musty odors may signal mold growth, while burning smells could mean electrical problems. If you notice anything unusual, shut down your system and call for professional service before the issue worsens.
4. Inspect Your Thermostat Settings
Late summer is a good time to adjust your thermostat for comfort and efficiency. If you have a programmable or smart thermostat, set slightly higher temperatures when you’re away to reduce strain on your system. This small change can help lower your utility bills without sacrificing comfort.
5. Schedule Professional Maintenance—It’s Not Too Late
If you skipped your spring tune-up, now is the time to catch up. Professional maintenance keeps your system running at peak performance and can prevent costly breakdowns. Our technicians at Purl’s will inspect all components, tighten electrical connections, lubricate moving parts, check refrigerant levels, and ensure your AC is ready to handle the remaining heat. Remember, better late than never—servicing your system now still delivers big benefits.
Get Ahead With Our Ultimate Service Agreement
When you join our Ultimate Service Agreement, you’ll enjoy regular maintenance for your heating and cooling systems year-round. That means you can take care of your AC now and get a jump on winter with heating maintenance included. You’ll also receive priority scheduling, exclusive discounts, and the peace of mind that comes with knowing your home comfort systems are in expert hands.