Refrigeration cycle equipment having a compressor , an indoor heat exchanger connected to the compressor , an expansion valve connected to the indoor heat exchanger , an outdoor heat exchanger connected to the expansion valve , a four-way valve through which the outdoor heat exchanger is connected to the compressor , and an outdoor fan , characterized in that the refrigeration cycle equipment further comprises: an outdoor temperature detecting means operable to detect an outdoor temperature; a heat storage material disposed around the compressor to store heat generated by the compressor only via an outer wall of the compressor ; a heat storage heat exchanger operable to heat-exchange with heat stored in the heat storage material ; a heat storage material temperature detecting means operable to detect a temperature of the heat storage material ; and a controller to which the outdoor fan , the outdoor temperature detecting means and the heat storage material temperature detecting means are electrically connected, the controller being configured to perform a defrosting operation wherein in the defrosting operation controlled by the controller, a refrigerant discharged from the compressor is introduced to the outdoor heat exchanger and to the heat storage heat exchanger via the indoor heat exchanger ; and a refrigerant having passed through the outdoor heat exchanger and another refrigerant heat-exchanged with the heat storage material in the heat storage heat exchanger join and are subsequently introduced to a suction side of the compressor ; and wherein when the temperature of the heat storage material detected by the heat storage material temperature detecting means is less than or equal to a predetermined value and the outdoor temperature detected by the outdoor temperature detecting means is greater than or equal to a predetermined value, the outdoor fan is operated by the controller. an outdoor temperature detecting means operable to detect an outdoor temperature; a heat storage material disposed around the compressor to store heat generated by the compressor only via an outer wall of the compressor ; a heat storage heat exchanger operable to heat-exchange with heat stored in the heat storage material ; a heat storage material temperature detecting means operable to detect a temperature of the heat storage material ; and a controller to which the outdoor fan , the outdoor temperature detecting means and the heat storage material temperature detecting means are electrically connected, the controller being configured to perform a defrosting operation wherein in the defrosting operation controlled by the controller, a refrigerant discharged from the compressor is introduced to the outdoor heat exchanger and to the heat storage heat exchanger via the indoor heat exchanger ; and a refrigerant having passed through the outdoor heat exchanger and another refrigerant heat-exchanged with the heat storage material in the heat storage heat exchanger join and are subsequently introduced to a suction side of the compressor ; and wherein when the temperature of the heat storage material detected by the heat storage material temperature detecting means is less than or equal to a predetermined value and the outdoor temperature detected by the outdoor temperature detecting means is greater than or equal to a predetermined value, the outdoor fan is operated by the controller. <EOS>