Before performing any air conditioner maintenance task, be sure to observe all necessary safety measures first. To start with, you should know which tasks are manageable for the average homeowner, and which ones should be left in the hands of experts. Also, see to it that the power is shut down before working on the outdoor unit.
Cleaning and/or replacing the air filter, checking the wiring, components and the condenser unit fan, examining the thermostat settings, and cleaning the outside unit are tasks that most homeowners should be able to do independently. However, calling for professional assistance to ensure that they are performed efficiently is always an available option.