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Seasonal HVAC Maintenance Checklist for East Tennessee Homes

August 21, 2025

KEEPING YOUR HVAC SYSTEM ON TRACK!

Keeping your HVAC system in top shape isn’t just about comfort—it’s about saving money, extending the life of your unit, and keeping your East Tennessee home healthy year-round. Seasonal maintenance is one of the best ways to avoid costly breakdowns and ensure your heating and cooling system runs efficiently, no matter the weather. At Phil’s Heating and Air, we’ve created a homeowner-friendly checklist to help you stay on track.

Logo: Three houses (red, blue) frame a flame/snowflake design, representing heating and cooling services.

Why Seasonal HVAC Maintenance Matters

East Tennessee weather can swing from humid summers to chilly winters, putting stress on your HVAC system. Without regular tune-ups, your system can lose efficiency, struggle to keep your home comfortable, and even shorten its lifespan. Preventative maintenance not only keeps your home comfortable but also reduces energy bills, improves indoor air quality, and protects your investment.


Spring & Summer HVAC Checklist (Cooling Season)

Before the summer heat sets in, make sure your air conditioning system is ready:


  1. Replace or clean air filters: Dirty filters restrict airflow and make your AC work harder, increasing utility costs.
  2. Inspect thermostat settings" Ensure your thermostat is working properly and consider upgrading to a programmable or smart thermostat for energy savings.
  3. Clean condenser coils: Outdoor units collect dirt and debris, which reduces efficiency. A professional cleaning improves performance.
  4. Check refrigerant levels: Low refrigerant means your AC won’t cool effectively and could signal a leak.
  5. Inspect ductwork for leaks: Air leaks reduce efficiency and waste money. Sealing ducts can cut energy costs by up to 30%.
  6. Clear debris around the outdoor unit: Keep at least 2 feet of clearance around your condenser for proper airflow.

Fall & Winter HVAC Checklist (Heating Season)

As temperatures drop, it’s time to switch focus to your furnace or heat pump:


  1. Replace air filters: Just like in the summer, clean filters are essential for proper airflow and efficiency.
  2. Test carbon monoxide detectors: Safety first. Ensure detectors are working if you use gas heating.
  3. Inspect the heat exchanger: A cracked exchanger can cause dangerous carbon monoxide leaks.
  4. Check blower motor and belts: Worn parts can cause inefficiency or system failure when you need heat the most.
  5. Clean and adjust burners: Properly maintained burners improve heating efficiency and reduce fuel waste.
  6. Seal air leaks in your home: Weatherstripping and insulation keep warm air inside and reduce heating costs.


Year-Round HVAC Tips


  • Schedule professional HVAC maintenance twice a year—once in the spring and once in the fall.
  • Keep vents and registers clean and unobstructed.
  • Monitor your energy bills—spikes often signal system inefficiency.
  • Consider upgrading to an energy-efficient HVAC system if yours is more than 10–15 years old.


HVAC technician in yellow hat reads instructions, examining an air conditioning unit.

Partner with Phil’s Heating and Air

Maintaining your HVAC system is the best way to keep your East Tennessee home comfortable in every season. At Phil’s Heating and Air, our licensed technicians provide expert HVAC maintenance, repairs, and installations. We’ll help you save money, improve air quality, and ensure your system is ready when you need it most.


👉 Contact Phil’s Heating and Air today to schedule your seasonal HVAC tune-up and keep your home running at peak comfort year-round! Call or text us at  (423) 741-5459 today!

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