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Spring HVAC Maintenance: Expert Advice and Simple Things Homeowners Can Do

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Readying your home for spring often involves garden prep and deep cleaning, but there is one hardworking system that often gets overlooked until the first heatwave hits: your HVAC.

Transitioning from the dry, heavy lifting of winter heating to the dehumidifying needs of spring cooling requires more than just flipping a switch. Here is how to ensure your system is efficient, healthy, and ready for the change in seasons.


1. The Foundation: Spring Maintenance

Think of a spring HVAC tune-up like an oil change for your car. After running all winter, your system likely has some wear and tear. A professional inspection typically includes checking refrigerant levels, cleaning the condenser coils, and ensuring the electrical connections are tight.

Getting this done in early spring—before the “emergency call” season begins—can prevent costly mid-summer breakdowns and extend the overall lifespan of your unit.

2. The Quickest Win: Filter Replacement

If you do nothing else, change your air filter. During winter, filters work overtime to trap dust and soot. A clogged filter restricts airflow, forcing your system to work harder and increasing your energy bills.

  • For standard filters: Check them every 30 days.
  • For high-efficiency filters: Replace them every 3–6 months.

Fresh filters don’t just protect the machinery; they are your first line of defense against spring pollen and allergens.

3. Fresh Start: Duct Cleaning for New Homeowners

If you have recently moved into a “new-to-you” house, a professional duct cleaning is a high-priority task. You don’t know the history of the previous occupants—or their pets. Construction debris, dander, and years of accumulated dust can hide in the ductwork, blowing right back into your living space the moment the AC kicks on.

Starting your journey in a new home with clean ducts ensures that the air you’re breathing is actually yours, not the previous owner’s.

4. Don’t Forget the Outdoor Unit

Your outdoor condenser unit has likely spent the winter collecting fallen leaves, twigs, and debris. For the unit to dissipate heat effectively, it needs “room to breathe.”

  • Clear the Perimeter: Ensure there is at least two feet of clear space around the unit.
  • Gently Clean: Use a garden hose (not a pressure washer, which can damage the delicate fins) to rinse away dirt and grass clippings from the exterior.

5. Test the Thermostat

Before the first 80-degree day, run a “test cycle.” Switch your thermostat to “Cool” and set it a few degrees below the current room temperature. Listen for any unusual clicking or grinding noises and feel the vents to ensure cold air is actually flowing. If something feels off, you have plenty of time to call a technician before the summer rush.


By taking these proactive steps now, you’ll enjoy a seamless transition into the warmer months, lower energy costs, and—most importantly—a cool, comfortable home.

For any Questions About Improving the Air Quality in your home. Don’t hesitate to give THERMALL HEATING COOLING and ELECTRIC a call at 509-214-0791. We will happily answer any other questions you have or give advice on even more ways to Improve your comfort and utility bills this Summer.

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