Emerson Dual Conversion Online UPS GXT3-6000RT208 User Manual

This section indicates various UPS symptoms a user may encounter and provides a troubleshooting 

guide in the event the UPS develops a problem. Use the following information to determine whether 

external factors caused the problem and how to remedy the situation.

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 indi-

cator will also be illuminated to provide a diagnostic aid to the user, as shown in Figure 26. The 

descriptions are listed in Table 4.

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&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

Maintance 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 port or Liebert

®

 IntelliSlot

®

 port) (no 

audible)

Utility LED flash

L-N reverse

 Battery Indicator

Flashing

Internal battery source not available (continuous horn); check battery connection, power down 

and reboot UPS

 Bypass Indicator

Flashing

Utility power voltage or frequency is out of tolerance; bypass is unavailable

A - E indicators are shown in Figure 26

A

B

C

D

E