Seasonal Heat Pump Maintenance: Air Filters, Coils & Refrigerant Checks

Because heat pumps provide both summer cooling and winter heating, they operate for double the running hours of a standard air conditioner. Biannual professional maintenance is essential to prevent unexpected breakdowns.

Spring tune-ups focus on outdoor condenser coil cleaning, condensate line flushing, electrical contactor inspections, and refrigerant subcooling/superheat verification.

Fall maintenance verifies defrost control board timing, reversing valve shifting, electrical strip heat emergency backup operation, and indoor blower wheel cleaning.

Replacing MERV 8 to MERV 11 air filters every 60 to 90 days maintains optimal airflow across evaporator coils, preventing frost accumulation and high head pressure.