A refrigeration cycle apparatus includes a refrigerant circuit configured to circulate refrigerant, a heat exchanger unit accommodating a heat exchanger of the refrigerant circuit, and a controller configured to control the heat exchanger unit. The heat exchanger unit includes an air-sending fan, an electric refrigerant detection unit, and a notifier configured to output notification of an abnormality. The controller is configured to stop electric supply to the electric refrigerant detection unit when an electric supply stop condition is satisfied under a state in which the electric refrigerant detection unit is supplied with electricity, supply electricity to the electric refrigerant detection unit when an electric supply condition is satisfied under a state in which the electric supply to the electric refrigerant detection unit is stopped, and cause the notifier to output the notification of the abnormality when an integrated time of electric supply to the electric refrigerant detection unit becomes equal to or larger than a threshold time.