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As the fast development of information and Internet technologies, lots of electrical appliances started to be digitized and combined with network technologies to provide people with much more multiple services. In this study, a new approach based on XMPP and OSGi technology to home automation on Web is proposed. An application of fault-detection mechanism for smart refrigerators is demonstrated to illustrate the realization of the proposed approach. Based on the proposed approach, a communication scheme of smart appliances is developed first. Then an inference engine is developed to derive the fault of refrigerator from the status of sensors. The appliance manufactures will be benefited from the fast self-diagnosis to remotely respond. The experimental results show the feasibility and modeling techniques applicable for the management of smart appliances on web.