a pulsating pattern signal ps which is initially coded in a format shown in fig6 may be transmitted from the remote controller to air conditioner body 1 the pattern signal ps is comprised of a leader code lc for judging the presence or absence of a signal transmission custom code cc for specifying the air conditioner to be controlled and data codes dc1 dc2 for selecting the operation temperature amount of air etc and determining the setting values a single operation of the push button switch for louver control permit the aforementioned pattern signal to be delivered once or a plurality of times the louver drive instruction signal is incorporated into data code dc2 as indicated by for example a crosshatched area the contents of the respective codes of the pattern signal ps are represented by a b c and d and for their identification inverted signal codes a b c and d are utilized the aforementioned pattern signal ps transmitted from the remote controller is received by receiving means 31 of air conditioner body 1 then the signal ps is sent to signal analyzing means 32 which in turn supplies a drive instruction signal to drive signal output means in accordance with the pattern signal ps the drive signal output means drives the louver motor to cause the louver slats to be swingably driven to control the direction in which air is blown off if a louver stop instruction is output by the depression of the push button switch the drive signal output means stops the louver motor thus stopping a swing of louver slats according to this invention the louver can continuously be driven by a single depression of the push button switch thus obviating the necessity of continuously depressing the push button switch.