7 Common AC Mistakes Homeowners Make (And How to Avoid Them)

Your air conditioner works hard to keep you comfortable — but small mistakes can cost you in performance, energy, and repairs. Here are the top AC mistakes we see, and how you can prevent them.

1. Ignoring Dirty Air Filters

Clogged filters restrict airflow, reduce efficiency, and strain your AC. Replace or clean your filter every 1–2 months — especially during summer.

2. Skipping Routine Maintenance

AC units need regular inspections and cleanings to run properly. Schedule professional HVAC maintenance at least once a year to avoid costly repairs.

3. Closing Too Many Vents

Closing vents in unused rooms may seem smart, but it can unbalance airflow and pressure, putting stress on your system. Keep most vents open and unobstructed.

4. Setting the Thermostat Too Low

Setting your thermostat to 65°F won’t cool your home faster — it only makes your system work longer. Aim for 75°F–78°F for a balance of comfort and efficiency.

5. Blocking the Condenser Unit

Keep 2–3 feet of space clear around your outdoor unit. Remove weeds, trash, and furniture to allow proper airflow and prevent overheating.

6. DIY Refrigerant Refills

Adding refrigerant without professional training can damage your system and void your warranty. If your AC isn’t cooling, schedule a repair instead.

7. Not Using a Smart Thermostat

Smart thermostats can lower cooling costs by 10–15% with better scheduling and remote control. Learn more about smart HVAC integration options for your home.

Need Help With AC Issues?

Aegis Heating & Air offers expert cooling services across West Valley City, Taylorsville, Magna, Kearns, Salt Lake City, and West Jordan.

Call (385) 250-0687 or book online for professional AC maintenance, repair, or installation today.