HVAC Maintenance Schedule: Complete Annual Guide

Every month, check and replace your air filter (or clean if reusable). A dirty filter is the #1 cause of HVAC problems. Inspect your outdoor unit for debris, vegetation, and obstructions - maintain 2 feet of clearance on all sides. Check that all vents are open and unobstructed. Listen for unusual noises during operation. These simple tasks take 10 minutes and prevent most service calls.

Schedule professional AC tune-up before the summer rush. Clean or replace filter. Clear debris from around outdoor unit. Test AC operation - switch to cooling mode and verify cold air within 15 minutes. Check condensate drain line (flush with vinegar/water). Inspect ductwork for visible damage or disconnections. Open all registers that were closed for winter. Consider adding a UV light for coil/air sanitization.

Change filter monthly during heavy use. Keep outdoor unit clean - hose off condenser coils monthly. Ensure condensate drain is flowing freely. Check refrigerant lines for ice (indicates a problem). Monitor energy bills for unusual increases. Keep blinds/curtains closed on south-facing windows. Set thermostat to 78F when home, higher when away. Do not set thermostat below 68F - this does not cool faster and strains the system.

Schedule professional furnace/heat pump tune-up. Replace filter. Test heating mode - switch on and verify warm air within 5 minutes. Inspect flue/vent pipes for damage or blockages. Check carbon monoxide detectors (replace batteries). Seal duct leaks with mastic or metal tape. Reverse ceiling fans to clockwise (pushes warm air down). Clear storage away from furnace/boiler area. Cover outdoor AC unit if you have a separate furnace (do NOT cover heat pump outdoor units).

Change filter every 1-2 months. Keep outdoor heat pump unit clear of snow and ice. Check for cold spots indicating duct issues. Monitor heating bills for increases. Keep thermostat at consistent temperature (avoid large setbacks with heat pumps). Ensure humidifier is working if installed. Check weather stripping on doors and windows. Do NOT close vents in unused rooms - this increases duct pressure and reduces efficiency.

A professional HVAC tune-up includes: thermostat calibration, electrical connection inspection and tightening, motor lubrication, condensate drain clearing, refrigerant level check, evaporator and condenser coil cleaning, blower component inspection, heat exchanger inspection (furnace), safety control testing, combustion analysis (gas systems), ductwork inspection, and overall system performance measurement. This takes 1-2 hours per system and costs $75-$200.