So is this a load shedding energy management system? Most Electrical management systems are different than an Energy Management System.
Xantrex is a maker of Energy Management Systems, one of many manufacturers. This type of EMS monitors power into an RV and if more items are trying to run than the pedestal can handle, the EMS shuts down circuits so you don't pop a breaker. They often have a display panel that shows electrical usage.
Progressive Industries and TRC make Electrical Management Systems, this type of EMS monitors the quality of the power coming into the RV. If it's outside of preset parameters, the power is shut down. They also prevent voltage surges from damaging your RV electrical items. They also have displays and often remote displays that show volts, amps, etc.
You're going to have to determine what type of EMS you have. I suspect it's the Load shedding energy managing type. You'll have to figure out the make and model of the unit and search online for a manual and perhaps a troubleshooting guide that can help you determine if it's working or needs repair.