In order to make it possible to perform a washing operation appropriately in an air-conditioner, this air-conditioner includes: a refrigeration cycle including a compressor for compressing a refrigerant, and an indoor heat exchanger for cooling or heating air in an air-conditioned room; a control device for controlling the refrigeration cycle to perform a washing operation for washing a surface of the indoor heat exchanger; an indoor fan for delivering air to the indoor heat exchanger; and an air state sensor for detecting a temperature or humidity of air that flows in from the air-conditioned room. The control device includes: a function (S102, S104) of driving the indoor fan for a predetermined time before performing the washing operation; and a function (S10, S120) of allowing the washing operation to be performed on condition that a detection result from the air state sensor after the indoor fan has been driven is within a first predetermined range.