Emerson Liebert GXT3 Series User Manual

Troubleshooting
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7.0 TROUBLESHOOTING
This section indicates various UPS symptoms a user may encounter and troubleshooting steps in the
event the UPS develops a problem. Use the following information to determine whether external fac-
tors caused the problem and how to remedy the situation.
7.1 UPS Symptoms
The following symptoms indicate the Liebert GXT3 has malfunctions.
• The related indicators will illuminate, indicating the UPS detected a problem.
• An alarm will sound, indicating that the UPS requires attention.
7.1.1 Indicators
In addition to the fault indicator being illuminated, one or more of LED segments of battery level indi-
cator will also be illuminated to provide a diagnostic aid to the user, as shown in Figure 25. The
descriptions are listed in Table 7.
Figure 25 Battery level indicator
Table 7 Indicator descriptions
Indicator Diagnosis/Audible alarm
A - E On bypass from output overload (half-second beep every half second)
A On bypass due to overtemperature 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&C UPS failed battery test (2-second beep every 60 seconds)
C&E UPS shutdown by command from communication (USB port or Liebert IntelliSlot
port) (no audible)
A&B UPS Failure (includes dual-fan failure, single-fan failure under certain conditions
and battery charger failure) and continuous alarm
Battery Indicator
Flashing
Internal Battery source not available (continuous horn); check battery connection,
power down and reboot UPS.
AC Input Indicator
Flashing
Line-to-neutral reversal in the AC input power supply or a loss of proper grounding
for UPS; continuous horn and UPS cannot start in standby status
Bypass Indicator
Flashing
Utility power voltage or frequency is out of tolerance; bypass is unavailable
A - E indicators are shown in Figure 25
ABCDE

Emerson Liebert GXT3 Series Specifications

General

Model	Liebert GXT3 Series
Frequency	50/60 Hz
Type	Online Double Conversion
Power Capacity	1kVA to 10kVA
Input Voltage	120V, 208V, 230V (depending on the specific model)
Output Voltage	120V, 208V, 230V (depending on the specific model)
Backup Time	Varies by model and load
Form Factor	Tower/Rackmount
Operating Temperature	0 to 40°C (32 to 104°F)
Humidity	0% to 95% (non-condensing)
Dimensions	Varies depending on the specific model
Weight	Varies by model
Battery Type	Valve-regulated lead acid (VRLA)