A system, device, method, and program for informing abnormality, providing a user with abnormality information of equipment in an easy-to-understand manner so that convenience is enhanced. When abnormality occurs in equipment including home electric appliances, abnormality information indicating abnormality is transmitted to a server through an information terminal, and based on a reply from the server, contents of the abnormality are displayed on the terminal. When the abnormality is eliminated, the abnormality display is removed or display on a monitor, etc. are made to inform the elimination of the abnormality.