The split type air conditioner of the present invention having an indoor unit (100) and an outdoor unit (200) is provided with a mechanical temperature detector (23) in the outdoor unit (200) to detect the frosted condition of an outdoor heat exchanger, and activates the CT (24) in the indoor drive circuit of an outdoor fan motor (13) as receiving means supplied with a frost detection signal delivered from the mechanical temperature detector (23) so as to deliver a de-ice operation start signal on the basis of the information from the CT (24). <IMAGE>
