[$100 plus parts]
(IF CLEANED AT THE SAME TIME AS FURNACE OR BOILER)
- Check operating pressures
- Check and chemically clean condenser and evaporator coil (if accessible)
- Check for adequate refrigerant charge
- Lubricate all moving parts
- Check belts and adjust tension
- Check filters
- Check pressure switch cut-out setting
- Check electrical lock out circuits
- Check starting contactor contacts
- Check all wiring and connections
- Check air temperature across indoor coil
- Check that condensate drain line is open
