The invention relates to a movable barrier operator with a removable power supply module for supplying power to the operator from a remote location. The power supply module may be decoupled from a barrier operator frame or housing, and installed in a remote location; the operator may therefore be observed and diagnosed remotely via a user interface that includes status indicators. In an exemplary embodiment, the user interface comprises one or more LED indicators to provide a user with information pertaining to the power supply of the operator.