Maintenance of wall-mounted split air conditioner

Usually, the household wall-mounted split air conditioner is turned off in September and then turned on from May to June of the following year, and it will not be used for more than half a year. Therefore, a comprehensive "diagnosis" must be done before the wall-mounted split air conditioner is turned on to check whether the wall-mounted split air conditioner is "faulty". According to the results of the inventory, under the guidance of professional and technical personnel, do a good job of maintenance and cleaning. This maintenance and cleaning should be more in place, including the casing, body, and filter of the outdoor unit and the indoor unit, and then start trial operation to observe the cooling speed and effect.