The electronic apparatus includes; a user interface which generates a module mapping signal corresponding to one of the driving modules; a controller which determines whether an error has occurred in the driving module and an error warning unit which warns a user if it is determined that the driving module has an error. A remote controller includes a user selection unit through which a user individually selects a driving module and a communicating unit which outputs a module mapping signal corresponding to the driving module selected by a user. 109 An error detecting method includes receiving a module selection signal to select one of the driving modules; determining whether an error has occurred in the driving module; and warning a user when an error occurs in the driving module according to determination results.