An air-conditioning apparatus, comprising: a refrigerant circuit including a compressor, a first load-side heat exchanger and at least one second load-side heat exchanger (12b, 12c, 12d) each of which functions as a condenser, and a heat-source-side heat exchanger functioning as an evaporator, the refrigerant circuit being configured to circulate refrigerant; a fan configured to supply air to the first load-side heat exchanger and the second load-side heat exchanger (12b, 12c, 12d); a first flow switching unit (21, 23, 27) located downstream of the compressor and upstream of the second load-side heat exchanger (12b, 12c, 12d) in a direction of flow of the refrigerant; a second flow switching unit (22, 24, 28) located downstream of the second load-side heat exchanger (12b, 12c, 12d) and upstream of the heat-source-side heat exchanger in the direction of flow of the refrigerant; and a controller configured to control the first flow switching unit (21, 23, 27), the second flow switching unit (22, 24, 28), and the fan, wherein the controller is configured to switch the first flow switching unit (21, 23, 27) between a first state in which refrigerant communication between the compressor and the second load-side heat exchanger (12b, 12c, 12d) is blocked and refrigerant communication is established between the compressor and the first load-side heat exchanger and a second state in which the compressor is in refrigerant communication with the first load-side heat exchanger and the second load-side heat exchanger (12b, 12c, 12d), and switch the second flow switching unit (22, 24, 28) between a third state in which refrigerant communication between the second load-side heat exchanger (12b, 12c, 12d) and the heat-source-side heat exchanger is blocked and refrigerant communication is established between the first load-side heat exchanger and the heat-source-side heat exchanger and a fourth state in which the heat-source-side heat exchanger is in refrigerant communication with the first load-side heat exchanger and the second load-side heat exchanger (12b, 12c, 12d), obtain a measurement of a high-pressure-side pressure of the refrigerant circuit or a measurement of a condensing temperature of the refrigerant circuit, when the measurement is equal to or lower than a threshold, stop the fan, set the first flow switching unit (21, 23, 27) in the first state, and set the second flow switching unit (22, 24, 28) in the third state, and when the measurement exceeds the threshold, cause the fan to operate, and set the first flow switching unit (21, 23, 27) in the second state and set the second flow switching unit (22, 24, 28) in the fourth state. a refrigerant circuit including a compressor, a first load-side heat exchanger and at least one second load-side heat exchanger (12b, 12c, 12d) each of which functions as a condenser, and a heat-source-side heat exchanger functioning as an evaporator, the refrigerant circuit being configured to circulate refrigerant; a fan configured to supply air to the first load-side heat exchanger and the second load-side heat exchanger (12b, 12c, 12d); a first flow switching unit (21, 23, 27) located downstream of the compressor and upstream of the second load-side heat exchanger (12b, 12c, 12d) in a direction of flow of the refrigerant; a second flow switching unit (22, 24, 28) located downstream of the second load-side heat exchanger (12b, 12c, 12d) and upstream of the heat-source-side heat exchanger in the direction of flow of the refrigerant; and a controller configured to control the first flow switching unit (21, 23, 27), the second flow switching unit (22, 24, 28), and the fan, wherein the controller is configured to switch the first flow switching unit (21, 23, 27) between a first state in which refrigerant communication between the compressor and the second load-side heat exchanger (12b, 12c, 12d) is blocked and refrigerant communication is established between the compressor and the first load-side heat exchanger and a second state in which the compressor is in refrigerant communication with the first load-side heat exchanger and the second load-side heat exchanger (12b, 12c, 12d), and switch the second flow switching unit (22, 24, 28) between a third state in which refrigerant communication between the second load-side heat exchanger (12b, 12c, 12d) and the heat-source-side heat exchanger is blocked and refrigerant communication is established between the first load-side heat exchanger and the heat-source-side heat exchanger and a fourth state in which the heat-source-side heat exchanger is in refrigerant communication with the first load-side heat exchanger and the second load-side heat exchanger (12b, 12c, 12d), obtain a measurement of a high-pressure-side pressure of the refrigerant circuit or a measurement of a condensing temperature of the refrigerant circuit, when the measurement is equal to or lower than a threshold, stop the fan, set the first flow switching unit (21, 23, 27) in the first state, and set the second flow switching unit (22, 24, 28) in the third state, and when the measurement exceeds the threshold, cause the fan to operate, and set the first flow switching unit (21, 23, 27) in the second state and set the second flow switching unit (22, 24, 28) in the fourth state.