Air conditioner control method and device, air conditioner, storage medium and program product

The invention discloses an air conditioner control method and device, an air conditioner, a storage medium and a computer program product. The air conditioner is provided with at least two indoor heat exchangers. An inner fan is arranged at each indoor heat exchanger; the at least two indoor heat exchangers are arranged in parallel and are connected with the same valve port of the four-way valve; an electronic expansion valve is arranged on a pipeline, connected with the same valve port of the four-way valve, of each indoor heat exchanger. The method comprises the steps that after a high-temperature sterilization mode is started, the opening degree of an electronic expansion valve on a pipeline of an indoor heat exchanger and the rotating speed of a corresponding inner fan are controlled according to the pipe temperature and the inlet temperature of the indoor heat exchanger in which the high-temperature sterilization mode is started; and determining whether to quit the high-temperature sterilization mode acc