Properly maintaining heating and cooling systems is the key to efficient operation. The difference between the energy consumption of a well-maintained heat pump and a severely neglected one ranges from 10 to 25 percent. It’s a good idea to have your system serviced twice a year—in the spring and the fall—before extreme temperatures make them work overtime.

What A Professional Will Do

  • Inspect ducts, filters, blower, and indoor coil for dirt and other obstructions.
  • Diagnose and seal duct leakage.
  • Verify adequate airflow by measurement.
  • Check for refrigerant leaks.
  • Inspect electric terminals and, if necessary, clean and tighten connections and apply a nonconductive coating.
  • Lubricate motors and inspect belts for tightness and wear.
  • Verify correct electric control, making sure that heating is locked out when the thermostat calls for cooling and vice versa.
  • Verify accurate thermostat operation.

What You Can Do

  • Clean or change filters once a month or as needed and maintain the system according to the manufacturer’s instructions. Dirty filters, coils, and fans reduce airflow through the system. Reduced airflow decreases system performance and can damage your system’s compressor.
  • Clean outdoor coils whenever they appear dirty; occasionally turn off power to the fan and clean it; remove vegetation and clutter from around the outdoor unit.
  • Clean the supply and return registers within your home and straighten their fins if they are bent.