The invention provides an air conditioner, a control method of the air conditioner and a storage medium. The air conditioner comprises a first heat exchanger, a second heat exchanger, a compressor, afirst four-way valve, a second four-way valve, a third heat exchanger and a photovoltaic power generation device. The second heat exchanger communicates with the first heat exchanger through a pipeline. The compressor comprises an air return port and an air exhaust port. The first four-way valve communicates with the air exhaust port of the compressor, the first heat exchanger and the air return port of the compressor. The second four-way valve communicates with the air exhaust port of the compressor, the second heat exchanger and the air return port of the compressor. The third heat exchangercommunicates with the air return port of the compressor through a pipeline. The photovoltaic power generation device corresponds to the third heat exchanger. According to the air conditioner, the photovoltaic power generation device corresponds to the third heat exchanger, the heat dissipation effect of the photovoltaic power generation device is improved, and by adjusting the communicating direction of the first four-way valve and the second four-way valve, the first heat exchanger can be defrosted when the air conditioner is in a heating manner.