An image forming apparatus that shifts to a power saving state includes a detection unit that detects an abnormality occurring in a device of the apparatus, a storage unit that stores, when the apparatus is to shift to the power saving state, information indicating the detected abnormality, a reception unit that receives a request to wake up from the power saving state, a determination unit that determines, when the reception unit has received the request, whether the device identified by the stored information is to be used, a control unit that performs control to supply power to the detection unit if the determination unit determines that the device is not to be used, and a display unit that displays information on the abnormality.