20 Point Checklist


  1. Check system for proper refrigerant charge
  2. Check compressor and fan amps
  3. Check and clean condenser fan
  4. Check capacitors
  5. Check contractor points
  6. Brush out electrical cabinet
  7. Check all caps and valves for seals and/or proper fit
  8. Check thermostat operation and mounting plus damper open/close
  9. Check blower amps
  10. Check heat strip amps, circuit components, and safeties
  11. Check/evaluate evaporator coil for buildup
  12. Check blower wheel for buildup
  13. Check all electrical connections and wires
  14. Change/wash filter
  15. Check temperature splits
  16. Lubricate all moving parts where applicable
  17. Flush and vacuum drain line/pan and evaluate drainage
  18. Check float switch operation
  19. Clean equipment exterior
  20. Check final performance and report necessary improvements


  1. Clean vegetation, etc. from outdoor unit
  2. Check and clean condenser coil
  3. Check crankcase heater
  4. Check reversing valve operation
  5. Check for excessive vibration
  6. Check condenser level
  7. Check safety controls where applicable
  8. Clean/dust return air grills
  9. Treat Air Handler/evap coil/case coil
  10. Treat plenum with micro-band and check for leaks