Troubleshooting
10.0TROUBLESHOOTING
The information below indicates various symptoms a user may encounter in the event the Liebert GXT2U develops a problem. Use this information to determine whether external factors caused the problem and how to remedy the situation.
1.The Fault indicator will illuminate, indicating the UPS detected a problem.
2.An alarm will sound, alerting that the UPS requires attention.
3.One or more additional load/battery level LED indicators will be illu- minated to provide a diagnostic aid to the operator, as described below:
Fault
E
BYPASS
D
C | UPS ON |
|
B BATTERY
A
AC
INPUT
This example shows the UPS
on bypass due to output overload.
A B C D E Fault
AC INPUT BATTERY UPS ON BYPASS
LOAD/BATTERY
LEVEL INDICATORS
LED status | Diagnosis / Audible alarm |
All LEDs | On bypass due to output overload; beep every |
A LED | On bypass due to overtemperature condition; beep every 4 sec. |
B LED | On bypass due to DC bus overvoltage; beep every 4 sec. |
C LED | On bypass due to control power supply failure; beep every 4 sec. |
D LED | On bypass due to PFC failure; beep every 4 sec. |
E LED | On bypass due to inverter failure; beep every 4 sec. |
A&C LEDs | UPS failed battery test; long beep every minute |
C&E LEDs | UPS shutdown due to command from communication port |
(SNMP); no beep | |
Battery LED | Internal Battery source not available (continuous horn). Check |
Flashing | battery connection, completely power down and reboot UPS. |
AC LED | |
Flashing | proper grounding; continuous horn and UPS will not start. |
Bypass LED | Utility power voltage or frequency is out of tolerance; bypass is |
Flashing | unavailable. |
27 | DISCONTINUED |
| PRODUCT |
