In a method of managing an electrical device, details of at least one operation performed using any one of one or more operation terminals to operate an electrical device are stored (S800); and when a state of running of the electrical device is displayed according to the details of at least one operation that are stored (S810), (i) information indicating which one of the one or more operation terminals has been used in operating the running and (ii) information indicating whether or not the details of at least one operation for the running have been performed using, among the one or more operation terminals, one operation terminal that is present in a same home as the electrical device are presented (S820, S830).