Your HVAC system is one of the hardest-working systems in your home. It keeps things cool in the summer and warm in the winter. 

With just a little seasonal maintenance—along with a few smart habits—you can help extend its life and keep it running efficiently, no matter what the weather might be. 

1. Replace Your Air Filter Often

Think of your HVAC filter like an oil filter in a car. It protects the entire system by keeping it clean. A clogged filter makes your system work harder to push air through, which drives up energy costs and wears out components faster.

 

A man replacing an air filter inside his home, on the roof.

 

For most homes, it’s a good idea to change your filter at least once every 90 days. But during peak seasons—such as hot summers or freezing winters—you may want to check it more frequently, especially if you have pets or allergies. 

A clean filter improves airflow and air quality, making your home more comfortable and your system more efficient.

2. Adjust Habits to Ease the Load

You can reduce unnecessary wear and tear on your HVAC just by making small changes inside your home.

  • In summer: Open windows during cooler evenings and run ceiling or box fans to circulate air. This gives your A/C a break, especially overnight when temperatures drop.
  • In winter: Lower your thermostat by just a couple degrees and throw on a cozy sweatshirt. You’ll reduce energy use and help your system last longer.

Even minor adjustments like these can lead to noticeable energy savings and keep your HVAC from working overtime.

3. Keep an Eye on the Outdoor Unit

Your HVAC system may show signs of trouble before it stops working altogether. That’s why it’s a good idea to occasionally inspect the outdoor unit.

Look for:

  • Rust or corrosion
  • Water around the base
  • Ice on the coils
  • Bent or dirty condenser fins

Catching these signs early can help prevent major breakdowns. A qualified technician can often resolve small issues before they turn into big, expensive problems.

4. Schedule a Tune-Up Twice a Year

Routine inspections are one of the best things you can do to protect your HVAC investment. Most experts recommend having your system checked by a licensed technician once in the spring and once in the fall.

These tune-ups typically cost less than $100 and help ensure everything is running smoothly before you really need it. Preventive care now can mean fewer surprises—and fewer costly repairs—later.

5. Clear Out Debris from the Outdoor Unit

Leaves, grass clippings, and even nests can block airflow and cause your system to overheat or shut down.

 

A repair man fixing the outdoor unit.

 

Every few weeks, do a quick visual inspection. Use a garden hose to gently spray away dirt from the unit’s exterior (after turning the power off). If you notice signs of nesting animals or pests, call a professional to handle it safely—especially if you see anything active like wasps or rodents.

Bonus Tip: APHW Has Your Back

Even with proper upkeep, HVAC systems can still experience breakdowns.

That’s where America’s Preferred Home Warranty (APHW) comes in. Our plans can help with the cost of unexpected HVAC repairs, so you're not caught off guard when things go wrong. And with our Contractor of Choice policy, you get the freedom to hire a licensed professional you trust for all approved claims.

If you're buying or selling a home, talk to your real estate agent about adding an APHW home warranty. It’s a smart way to protect your comfort—and your wallet—year-round.