-Dispatched to identify problems with Mini Split heat Pump in Data/Server Room. Dispatch states massive refrigerant leak. System was cooling with only a 12 degree temperature difference at last service. Maintenance not on site at time of arrival. -Found air handler in server room not operating. Unable to identify any leaks with sniffer at evaporator coil. Found no high voltage at air handler. Found no high voltage at condenser in middle courtyard. Found no continuity through time delay fuses in disconnect. -Found compressor failed megohm test on all 3 terminals. Found compressor shorted to ground. Compressor has failed and unit is non operational. Customer should consider cost of compressor replacement versus price of system replacement. Other issues may be present in system pending compressor replacement. Field supervisor should provide options for customer.