Vertiv™ | Liebert® STS2/PDU
™
User Manual | Rev. 6 | 10/2017 129
INPUT 1 SURGE FAILURE
Input 1 Surge Failure
Source 1 input surge suppression module has failed.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event and the system status surrounding it have been written to a History Log if the History Logs were not
already full. This event was also written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
INPUT 2 SURGE FAILURE
Input 2 Surge Failure
Source 2 input surge suppression module has failed.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event and the system status surrounding it have been written to a History Log if the History Logs were not
already full. This event was also written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
HEAT SINK OVERTEMP
Heat Sink Over Temperature
The system heat sink temperature has exceeded the design limits.
Take immediate steps to cool the unit. Remove obstructions from the air inlet in the front of the unit. Remove
and replace the air filter behind the front door. A standard furnace filter can be used.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
EQUIPMENT OVERTEMP
Equipment Over Temperature
Cabinet has exceeded the recommended temperature.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event and the system status surrounding it have been written to a History Log if the History Logs were not
already full. This event was also written to the Event Log, if so configured.