It is generally recommended that air conditioners be serviced at least once a year. Some manufacturers may recommend specific maintenance tasks, such as cleaning the air filters. Consult a trained HVAC technician who can provide advice and guidance on how often your air conditioner should be serviced. T&K Mechanical has been serving the Quincy and Boston areas for over 30 years. To know more, visit them online at https://tkmechmass.com/cooling/.