Appliance management system

An appliance management system, comprising:

• a plurality of appliances connected to a network;
• and
• a portable terminal connectable to the plurality of appliances, wherein each of the appliances comprises:
• a sensor configured to detect an abnormality of the appliance;
• and
• a first near field wireless communication module configured to broadcast an identifier of the appliance when the sensor detects the abnormality, no abnormality code of the abnormality being broadcasted with the identifier of the appliance, the portable terminal comprises:
• a second near field wireless communication module;
• and
• a terminal controller configured to:
• control the second near field wireless communication module to transmit an access request including an identifier of the portable terminal to an abnormal appliance in the plurality of appliances upon the second near field wireless communication module receiving an identifier of the abnormal appliance within a near field wireless communication range,
• establish a one-to-one near field wireless communication with the abnormal appliance upon the access request being granted by the abnormal appliance, and
• control a display to display an abnormality screen including the identifier of the abnormal appliance upon the second near field wireless communication module receiving abnormality information including the abnormality code of the abnormality transmitted from the abnormal appliance via the one-to-one near field wireless communication.