header image

What Does Our Air Conditioning PM Cover?

  1. Clearing debris away from the equipment; if the compressor is in full sun, plant shrubs nearby, not closer than 3 feet, to provide shade – Clean debris from the condensing unit so as to not obstruct air flow
  2. Use Coil Cleaner to clean you condensing coil, if needed; let it form up and rinse thoroughly – Dirty coils reduce energy efficiency and make the compressor run longer
  3. Check to ensure the condenser’s fan blade is in balance and not vibrating
  4. Check contactors and change your contactors if needed
  5. Test components necessary for starting (e.g., relays, start and run capacitors) to ensure they're working properly (e.g., have the proper amount of capacitance)
  6. Check the amp draw on all your motors to ensure they’re within specification
  7. Check all wire connects to make sure they’re tight – Frayed wiring is a fire hazard; improper connections affect voltage and flow of current, which can damage a unit
  8. Clean the evaporator coils – Dirty coils reduce energy efficiency and make the compressor run longer
  9. Clean or replace air filter(s) – Dirty air filters are the primary cause of breakdowns that require air conditioning repair; dirty air filters make a unit work harder and affect indoor air quality; airborne particulates are re-circulated through the system and blown into the air you breathe
  10. Clean the condensate drain – Clogged drains keep moisture from leaving the system; water can back up and damage not only the unit but nearby structural elements of the building; excess water in the system affects indoor humidity
  11. Ensure the capillary tubes are not chafing on any other parts of the system
  12. Clean and/or replace any UV Lights
  13. Check ducts and insulation to ensure there are no air leaks
  14. Check and ensure the (Armaflex) insulation on your line-set is in good condition
  15. Check the blower-wheel to ensure it’s in good condition and clean (i.e., spins freely) – Restricted airflow can reduce efficiency by up to 15 percent
  16. Check the amp draw on the compressor
  17. Check and balance refrigerant levels, because coolant that is too high or too low affects efficiency – A reduction in coolant levels of even 10 percent can increase operating costs by 20 percent
  18. Test the refrigerant oil annually and send an oil sample to a lab (if necessary) to test for acidity, metal or foreign deposits, moisture content, and to determine if bearings are starting to wear out
  19. Oil all moving parts – Sluggish fans and motors make a unit work harder
  20. Clean, level and calibrate thermostat – Energy usage increases by 8 percent for each degree a thermostat is lowered; dirt in the housing affects temperature readings; a thermostat that has been bumped and loses its level also affects calibration
  21. Make sure the unit cycles on and off properly – The system should turn on, run through a full cycle and shut off properly