A homeowner HVAC maintenance checklist - what to do each spring and fall, what to leave to a technician, and how tune-ups prevent emergency breakdowns.
Check the air filter. Replace 1-inch filters every 1–3 months. Keep supply and return registers unblocked by furniture and rugs.
Clear two feet around the outdoor unit, gently rinse the condenser coil with a hose from the inside out, verify the condensate drain runs freely, and schedule a professional AC tune-up.
Replace the filter, test the system early on a cool day so you find problems before a cold snap, confirm carbon monoxide detectors work, and schedule a furnace tune-up with combustion testing.
Refrigerant charge, electrical testing, capacitor replacement, flame sensor cleaning, heat exchanger inspection, gas pressure and combustion analysis all require tools and training.
Clean coils, correct charge and proper airflow commonly cut HVAC energy use 5–20%, and most manufacturers require documented annual service to keep the parts warranty valid.
Guesswork costs more than a service call. Talk to a licensed technician now.
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