Tripp Lite SU5000RT3U Owner's Manual for SmartOnline Single-Phase 5kVA, 6kVA & - Page 21

Operation Startup Self-Test When you turn the UPS ON, it will enter Diagnostic Mode and perform a brief self-test lasting about 15 seconds. The results of the self-test are shown on the LCD screen in the sequence below. STARTED WITH AC INPUT DIAGNOSTIC MODE FREQ OUT = XXHz  DIAGNOSTIC MODE INPUT AC OK  DIAGNOSTIC MODE INPUT AC OK  DIAGNOSTIC MODE BATTERY OK  DIAGNOSTIC MODE CHARGER OK  DIAGNOSTIC MODE AC/DC OK  DIAGNOSTIC MODE TESTING INVERTER  ONLINE MODE LOAD = XXX% X.XXKW *Note: If the UPS is cold started, its BATTERY LED will be lit. COLD START* DIAGNOSTIC MODE FREQ OUT = XXHz  DIAGNOSTIC MODE INPUT AC BAD  DIAGNOSTIC MODE INPUT AC BAD  DIAGNOSTIC MODE BATTERY OK  DIAGNOSTIC MODE AC/DC OK  DIAGNOSTIC MODE TESTING INVERTER  ON BATTERY MODE LOAD = XXX% X.XXKW Failed Self-Test If a problem is detected during the self-test, the LCD will display a error message. If your UPS displays any of the following messages in its LCD, call Tripp Lite Technical Support at (773) 869-1234 for service. BAD BATTERY! CALL FOR SERVICE CHARGER FAILURE! CALL FOR SERVICE AC/DC FAILURE! CALL FOR SERVICE INVERTER FAILURE! CALL FOR SERVICE OUTPUT FAILURE! CALL FOR SERVICE FAN FAILURE! CALL FOR SERVICE 21