In an air conditioner of the present embodiment capable of selecting either a fan rotation speed determined on the basis of a static pressure value and an air volume or a required fan rotation speed, motor control means determines, on the basis of the static pressure Pt, the fan rotation speed Rm of a fan motor that provides the air volume Av required by the user, and transmits the determined fan rotation speed Rm to an indoor unit control means. When the fan rotation speed Rm received from the motor control means is a prohibited rotation speed, the indoor unit control means transmits a correction fan rotation speed different from the prohibited rotation speed to the motor control means, and the motor control means drives the fan motor at the received correction fan rotation speed.