As temperatures begin to rise after winter ends, your air conditioning system is about to shift into high gear. After sitting idle through the winter months, your AC needs a little attention before it’s ready to handle the demands of spring heat waves, peak summer temperatures, and even the lingering warmth of early fall.
A little preparation now can prevent breakdowns, improve energy efficiency, and extend the life of your system. Use this homeowner-friendly checklist to ensure your AC is ready for the seasons ahead.
1. Change the Air Filter
Your air filter plays a crucial role in airflow and indoor air quality. A clogged or dirty filter forces your system to work harder, increasing energy use and putting unnecessary strain on components.
Check your filter before the cooling season begins and replace it if it’s dirty. During heavy-use months, most homes benefit from changing filters every 1–3 months, depending on pets, allergies, and household dust levels.
2. Inspect the Outdoor Unit
Your outdoor condenser unit has likely endured winter storms, debris, and temperature swings. Before turning on your AC regularly, walk around the unit and look for:
- Fallen branches or leaves
- Bent or damaged fins
- Visible cracks or loose panels
- Signs of pests nesting inside
Clear away debris within at least two feet around the unit to ensure proper airflow. Restricted airflow can reduce efficiency and increase operating costs.
3. Gently Clean the Condenser
Dust, dirt, and grass clippings can accumulate on the exterior coils of your outdoor unit. When the coils are dirty, your system can’t release heat efficiently.
Turn off the power to the unit before cleaning. Use a garden hose (never a pressure washer) to gently rinse away dirt from the outside. If you notice heavy buildup inside the unit, it’s best to leave deep cleaning to a professional.
4. Clean Supply and Return Vents
Indoor vents collect dust during the winter months. Wipe down vent covers and make sure they’re not blocked by furniture, rugs, or curtains. Good airflow is essential for balanced cooling and consistent comfort.
5. Test Your Thermostat
Switch your thermostat to cooling mode before temperatures rise. Make sure the system turns on smoothly and reaches the desired temperature.
If your thermostat uses batteries, replace them. You may also consider upgrading to a programmable or smart thermostat to improve efficiency and reduce cooling costs throughout the season.
6. Check for Unusual Noises or Odors
When your AC runs for the first time, pay attention to how it sounds and smells. Grinding, rattling, buzzing, or musty odors can indicate mechanical issues, loose parts, or mold concerns. Catching these early can prevent more expensive repairs later.
7. Schedule Professional Maintenance
One of the most important steps in preparing your AC is scheduling a professional tune-up. A licensed technician will inspect electrical components, check refrigerant levels, test system performance, and clean internal parts that homeowners can’t safely access. Annual maintenance improves efficiency, extends system lifespan, and reduces the risk of mid-summer breakdowns.
A little preparation today ensures your AC is ready to keep you cool all season long. Schedule maintenance with Evenflow Home & Commercial Services, where your service flows smoothly from start to finish: we guarantee it!
