Maintaining your HVAC system is essential for ensuring comfort, efficiency, and reliability year-round. For homeowners in Farmington, Missouri, regular HVAC maintenance not only extends the lifespan of your equipment but also helps lower energy bills and prevent unexpected breakdowns. With Farmington’s fluctuating weather patterns, proactive maintenance is the key to long-term performance and savings.
By following these simple HVAC maintenance tips, you can keep your system running smoothly, avoid costly repairs, and enjoy a comfortable home environment.
1. Change Your Air Filters Regularly
One of the most important maintenance tasks is regularly replacing your air filters. Dirty filters restrict airflow, forcing your system to work harder and consume more energy. This not only leads to higher energy bills but also increases wear and tear on your equipment.
How often should you change them? Generally, every 1-3 months is recommended, but factors like pets, allergies, and usage can influence the frequency. Check your filter monthly and replace it when it appears dirty.
Pro Tip for Farmington Homes:
Missouri’s seasonal pollen can quickly clog filters. Consider investing in high-efficiency particulate air (HEPA) filters to trap allergens and keep indoor air clean.
2. Keep Your Outdoor Unit Clear
Your outdoor unit needs to breathe!
Ensure the area around it is free of debris like leaves, grass clippings, and branches. Aim for at least two feet of clearance on all sides. This allows for proper airflow and prevents the unit from overheating.

Image credit: Rowan Heuvel via Unsplash
3. Inspect and Seal Air Ducts
Leaky ducts can waste up to 30% of your HVAC system’s energy. Inspect ducts for gaps and seal them with mastic sealant or HVAC-specific duct tape to improve efficiency and comfort.
Why It Matters in Farmington:
Older homes in Farmington may have poorly insulated ducts. Sealing leaks can make a significant difference in maintaining consistent temperatures.
4. Pay Attention to Unusual Noises
Your HVAC system can communicate its needs through sounds. If you notice any unusual noises like squealing, grinding, or banging, don’t ignore them. These could indicate a problem that requires professional attention.
5. Monitor Your Thermostat
An accurate thermostat ensures your HVAC system operates efficiently. The DOE recommends upgrading to a programmable or smart thermostat to automatically adjust temperatures based on your schedule, saving energy when you’re not home.

Image credit: Dan LeFebvre via Unsplash
Energy-Saving Tip:
Set your thermostat to 68°F in winter and 78°F in summer for optimal energy efficiency without sacrificing comfort.
6. Clean Vents and Registers
Blocked or dirty vents reduce airflow and put strain on your system. Regularly vacuum and dust your vents, ensuring they remain clear of obstructions like furniture, rugs, or curtains.
Quick Fix:
Use a damp cloth to clean vents and prevent dust buildup that can circulate through your home.
7. Schedule Professional Maintenance
While some tasks can be handled by homeowners, professional maintenance is crucial for optimal performance. Schedule a tune-up with a qualified HVAC technician at least once a year, ideally in the spring for your air conditioner and in the fall for your furnace.
What does a professional tune-up include?
Cleaning and inspection of all components: This includes the blower motor, coils, condensate drain, and refrigerant levels.
Testing and calibration: Technicians will test the thermostat, safety controls, and electrical connections to ensure proper operation.
Performance optimization: They’ll make adjustments to optimize airflow, refrigerant charge, and overall system efficiency.
Farmington homeowners can rely on Nicholson Heating & Air for comprehensive annual inspections tailored to the local climate.
Contact us today to schedule your service and keep your HVAC system in peak condition!