Abstract: A portable sub-service station for a servicing system provides diagnostic and servicing support for an electric device. The servicing system has a service center for providing diagnostic and servicing support, and a communications link that enables communications between the service center and the sub-service station. The sub-service center has a processor, a communications module for establishing communications with the service center via the communications link, memory for the processor, a control program stored in the memory, an input/output (I/O) port for receiving signals from the electric device and for sending signals to the electric device, a display for presenting visual information to a user, and an input panel that enables the user to provide input to control the operations of the sub-service station. The electric device is detachably electrically connected to the I/O port of the sub-service station, and the sub-service station performs diagnostic or servicing functions on the electric device.