AIR CONDITIONER

An outdoor unit of the present invention includes a converter, a capacitor, an inrush current preventing element, a light-emitting element, a switch, an electrical switch, and an outdoor controller. The outdoor controller operates using the voltage of the capacitor, closes the electrical switch after a prescribed period of time from operation initiation, and opens the electrical switch when operation of the outdoor unit becomes unnecessary. An indoor unit of the present invention includes an indoor controller. The indoor controller continuously transmits a signal to a signal line when the operation of the outdoor unit becomes necessary. 室外单元包括转换器、电容器、冲击电流防止用的元件、发光元件、开关、开闭器以及室外控制器，室外控制器根据所述电容器的电压而动作，在从动作开始起规定时间后将所述开闭器闭合，在不需要该室外单元的运转时将该开闭器打开。室内单元包括室内控制器。室内控制器在需要所述室外单元的运转时，向所述信号线连续地发送信号。