The Ultimate HVAC Maintenance Checklist for Every Season
Monthly checks
Inspect and, where needed, replace air filters — the single most common cause of reduced airflow and higher energy bills. Check for unusual noise, vibration, or odors, which are often the earliest sign of a developing fault.
Quarterly checks
Clean condenser and evaporator coils, which lose heat-exchange efficiency as dust builds up on the fins. Check refrigerant levels and look for any signs of leaks. Inspect ductwork for loose joints, damage, or blockages that reduce delivered airflow.
Seasonal checks
Before summer, verify cooling capacity and condenser performance ahead of peak demand. Before winter (where heating is installed), check heating elements and controls. At each seasonal transition, recalibrate thermostats and zoning controls for the change in occupancy and outdoor conditions.
Annual checks
A full system inspection covering electrical connections, compressor condition, motor bearings, and control calibration catches the issues that don’t show up in routine monthly or quarterly checks. This is also the point to review whether any components are approaching the end of their rated service life and worth planning a retrofit around.
Keeping to the schedule
A maintenance contract that spreads these checks across the year — rather than one large annual inspection — catches small issues before they become expensive breakdowns. Breeze Air Conditioning’s maintenance contracts are structured around this kind of year-round schedule.
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