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4 SLI-23185QS6_Rev0_09-2012
Troubleshooting
The following symptoms indicate the Liebert
®
GXT3
™
is malfunctioning:
• The relative indicators illuminate, indicating the UPS has detected a problem.
• An alarm buzzer sounds, alerting the user that the UPS requires attention.
In addition to the fault indicator being illuminated, one or more of LED segments of battery level indicator will also be
illuminated to provide a diagnostic aid to the user, as shown below
The descriptions are listed in the following table
Indicator
Diagnosis/Audible alarm
A - E
On bypass from output overload (half-second beep every half-second)
A
On bypass due to over temperature condition (1-second beep every 4 seconds)
B
On bypass due to DC bus overvoltage (1-second beep every 4 seconds)
C
On bypass due to DC/DC power supply failure (1-second beep every 4 seconds)
D
PFC failure (1-second beep every 4 seconds)
E
On bypass due to inverter failure (1-second beep every 4 seconds)
A&B
UPS Failure (includes dual-fan failure, single-fan failure under certain conditions and
battery charger failure) and continuous alarm
A&C
UPS failed battery test (2-second beep every 60 seconds)
A&D
Maintenance bypass switch on (continuous)
A&E
Bypass feedback (1-second beep every 4 seconds)
B&C
REPO (one quarter-second beep at quarter-second intervals)
B&E
Short circuit on the output
C&E
UPS shutdown by command from communication (USB or Liebert IntelliSlot
®
port)
(no audible alarm)
AC Input Indicator
LED flashing
L-N reverse
Battery Indicator
Flashing
Internal battery source not available (continuous audible alarm); check battery
connection, power down and reboot UPS
Bypass Indicator
Flashing
Utility power voltage or frequency is out of tolerance; bypass is unavailable
Single-Phase UPS & Server Cabinets Technical Support
liebert.upstech@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Emerson Network Power Worldwide Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
800-222-5877
Europe
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD) Italy
+39 049 9719 111
Fax: +39 049 5841 257
Asia
29/F, The Orient Square Building
F. Ortigas Jr. Road, Ortigas Center
Pasig City 1605
Philippines
+63 2 687 6615
Fax: +63 2 730 9572