AIR CONDITIONING DEVICE

PROBLEM TO BE SOLVED: To perform an accurate judgement whether or not a blower is being driven. SOLUTION: Air in a room R is conditioned by a heat exchanger and a cross flow fan of an indoor device 12 and then the air is blown into a closed space S adjacent to the room R. Blowers 16n1 to 16n3 are connected to power supply lines 18n1 to 18n3. As a power supply for the indoor device 12 is turned on, the power supply lines 18n1 to 18n3 are connected to the power supply and an air blowing of the air in the space S into the room R is started after elapsing of a predetermined time from a time when a switch is turned on. A micro-computer within the indoor device 12 calculates a threshold value in response to a value larger than a driving current detected by a sensing means in the indoor device 12 by a predetermined value from a time in which the power supply lines 18n1 to 18n3 are connected to the power supply to an elapsing of the predetermined time and a ratio between a voltage of the power supply when the driving current is detected and the present voltage and in the case that the present driving current is more than the threshold value, a rotating speed of a cross-flow fan is controlled in such a way that an amount of air blowing into the closed space S may be increased.