Hiring Professional Service



When your conditioner needs more than the regular maintenance described previously, hire a professional service technician. A well-trained technician will find and fix problems in your system. However, not all service technicians are competent. Incompetent service technicians forsake proper and perform only minimal stopgap measures. Insist that the technician:

  • check for correct amount of refrigerant;
  • test for refrigerant leaks using a leak detector;
  • capture any refrigerant that must be evacuated from the system, instead of illegally releasing it to the atmosphere;
  • check for and seal duct in central systems;
  • measure air flow through the evaporator coil;
  • verify the correct electric control sequence and make sure that the heating system and system cannot operate simultaneously;
  • inspect electric terminals, clean and tighten connections, and apply a non-conductive coating if necessary;
  • oil motors and check belts for tightness and wear; and
  • check the accuracy of the thermostat.