[Craig Vernon]

Air Conditioner systems are sealed systems with motors that never need oiled or serviced. Two points of cleaning for personal maintenance are to put vinegar into condensate drain to keep clean sentiment if not used for a period of months which in Florida is probably rare and also clean the outside condenser coils with a hose spraying from top of each side down toward the ground. The only time you should be paying for a service call is if the unit is not working properly. "If you invite a fox into your hen house eventually it will eat your chickens." HVAC service person for over 20 years...Energy company service worker for 37 and counting.