The invention discloses a self-cleaning control method for an air conditioner, and belongs to the technical field of air conditioners. The self-cleaning control method for the air conditioner aims tosolve the problem that a self-cleaning
control mode of an existing air conditioner is generally slow in frosting speed, so that the whole self-cleaning time is caused to be long, and the normal experience of a user is influenced. The self-cleaning control method for the air conditioner is provided, the air conditioner comprises a
refrigerant circulation
system and a solution circulation
system, wherein the solution circulation
system is composed of an indoor solution film, an outdoor solution film, a liquid pump and a
liquid storage tank; the self-cleaning control method comprises the following steps that a compressor is enabled to reduce frequency under a
refrigeration working condition, a four-way valve is reversed, the opening degree of an
electronic expansion valve is reduced, the rotating speed of the liquid pump is improved, an outdoor
heat exchanger is frosted; after the outdoor
heat exchanger is frosted, the
electronic expansion valve is closed firstly, and an
electromagnetic valve at the low pressure side of the compressor is closed after a preset time; and the outdoor
heat exchanger is heated, so that the outdoor heat exchanger is subjected to
defrosting cleaning. The self-cleaning control method for the air conditioner can improve the self-cleaning efficiency of the outdoor heat exchanger, and the user experience is improved.