Periodic maintenance Periodic maintenance Periodic maintenance Cleaning and washing the indoor and outdoor unit of the air conditioner.Disassemble and wash the air filter.Check Freon and oil charge.Check all electrical connections of the unit.Perform a full examination of the air-conditioning unit and issue a report of malfunctions, if any.Review the efficiency of the unit’s performance during the specified time period.Issuing a report on the status of the unit and the consequent repairs and spare parts. Service request