A well-maintained air conditioning system keeps your home comfortable, your energy bills in check, and your indoor air healthy. Whether you’re scheduling a professional tune-up or tackling a few tasks yourself, use this ultimate checklist to keep your AC running at peak performance all season long.
1. Replace or Clean Air Filters
Dirty filters restrict airflow, making your system work harder and consume more energy.
Action: Check filters every month during heavy use and replace or clean them at least every 1–3 months.
2. Inspect and Clean the Condenser Unit
Leaves, dirt, and debris around the outdoor condenser can block airflow.
Action: Gently clear away vegetation and rinse the coils with a garden hose (power off first).
3. Check Thermostat Settings
An inaccurate or outdated thermostat can waste energy.
Action: Verify the settings, replace batteries if needed, and consider upgrading to a programmable or smart thermostat for better efficiency.
4. Examine Ductwork for Leaks
Leaky ducts can lose up to 30% of cooled air.
Action: Look for visible gaps or call a professional for a full inspection and sealing.
5. Clean or Adjust Vents and Registers
Blocked vents reduce airflow and comfort.
Action: Vacuum dust from supply and return vents and make sure furniture isn’t obstructing them.
6. Inspect Electrical Components
Loose connections or worn wiring can lead to breakdowns.
Action: A licensed technician should check all electrical components during an annual service visit.
7. Lubricate Moving Parts
Fan motors and other moving components need lubrication to reduce friction and wear.
Action: Ask your HVAC technician to handle this during routine maintenance.
8. Check Refrigerant Levels
Low refrigerant can signal a leak and reduce cooling efficiency.
Action: Only a certified professional should test and recharge refrigerant.
9. Test System Performance
Run your AC through a full cooling cycle to confirm it starts, runs, and shuts off properly.
Action: Listen for unusual noises and watch for inconsistent temperatures.
10. Schedule Professional Maintenance
Even the best DIY efforts can’t replace a thorough professional tune-up.
Action: Book an annual inspection and cleaning before peak summer to prevent costly repairs.
Keep Your Home Cool and Efficient
Regular AC maintenance saves energy, prevents unexpected breakdowns, and extends the life of your system. Follow this checklist and schedule a professional service visit to enjoy reliable comfort all summer long.
Need expert AC servicing? CostLess Heating & Cooling is here to help with comprehensive inspections, cleaning, and tune-ups to keep your system running smoothly.
