What does it mean when the fault indicator LED and diagnostic LED A and C are illuminated on my Liebert GXT2U UPS?
If the Fault indicator LED and diagnostic LEDs A and C are illuminated on your Liebert UPS, it means the UPS failed the battery test.
What does it mean when the fault and bypass indicator LEDs and diagnostic LED A are illuminated on my Liebert UPS?
If the Fault and Bypass indicator LEDs and diagnostic LED A are illuminated on your Liebert UPS, it indicates that the UPS internal fan has a problem or the UPS shut down due to a temperature condition, and the load is on bypass power. Ensure the UPS is not overloaded, the ventilation openings are not blocked, and the room ambient temperature is not excessive. Wait 30 minutes to allow the UPS to cool, then restart it.
What does it mean if the bypass LED is flashing on my Liebert GXT2U UPS?
If the Bypass LED is flashing on your Liebert UPS, it means that the bypass voltage is present but disabled because the voltage or frequency is outside acceptable limits. The AC input powers the PFC input and serves as the bypass source. If the AC is present but the voltage or frequency exceeds the acceptable range for safe operation with a load, the bypass will be disabled, and this LED will flash, indicating that the bypass is unavailable.
What does it mean if the battery LED is flashing on my Liebert GXT2U UPS?
If the Battery LED is flashing on your Liebert UPS accompanied by a continuous horn, it indicates that the battery source is not available. Check the battery connections, completely power down, and then restart the UPS. Note: If the battery circuit opens while the UPS is running, it will be detected when the next battery test is performed.
What to do if the Battery LED is flashing on my Liebert GXT2U?
If the Battery LED is flashing on your Liebert UPS and a continuous horn is sounding, it indicates that the battery source is not available. You should check the battery connections, completely power down the UPS, and then restart it. Note: If the battery circuit opens while the UPS is running, it will be detected when the next battery test is performed.
What does it mean when the fault and bypass indicator LEDs and all load level LEDs are illuminated on my Liebert GXT2U?
If the Fault and Bypass indicator LEDs and all load level LEDs are illuminated on your Liebert UPS, it indicates that the UPS is overloaded or the load equipment is faulty. Check the load level display and remove non-essential loads. Recalculate the load and reduce the number of loads connected to the UPS. Also, check the load equipment for faults.
What to do if my Liebert GXT2U fails to start when the ON button is pressed?
If your Liebert UPS fails to start when you press the ON button, it might be short-circuited or overloaded. Ensure the UPS is OFF, disconnect all loads, and make sure nothing is lodged in the output receptacles. Also, check that the loads are not defective or shorted internally.
What does it mean if the Fault and Bypass indicator LEDs and diagnostic LED E are illuminated on my Liebert GXT2U UPS?
If the Fault and Bypass indicator LEDs and diagnostic LED E are illuminated on your Liebert UPS, it indicates a UPS inverter fault. The UPS requires service.
What does it mean if the Fault and Bypass indicator LEDs and diagnostic LED D are illuminated on my Liebert GXT2U UPS?
If the Fault and Bypass indicator LEDs and diagnostic LED D are illuminated on your Liebert UPS, it indicates a UPS PFC (Power Factor Correction Circuit) fault. The UPS requires service.
What to do if Fault and Bypass indicator LEDs and diagnostic LED C and E are illuminated on my Liebert GXT2U UPS?
If the Fault and Bypass indicator LEDs and diagnostic LEDs C and E are illuminated on your Liebert UPS, it indicates that the UPS shut down due to a command from the communications port(s). Your UPS has received a signal or command from the attached computer. If this was inadvertent, ensure the communication cable used is correct for your system.
Inspect unit for damage, choose location, and determine installation type.
Instructions for setting up the UPS in a vertical orientation.
Describes the ON, Alarm Silence, and Manual Battery Test functions.
Explains the dual function of the Standby/Manual Bypass button.
Details load/battery indicators and status indicator LEDs.
Covers the AC Input indicator LED and output voltage configuration.
Explains how to diagnose problems using LED status and audible alarms.
Addresses problems with UPS startup, battery illumination, and reduced battery time.
Covers troubleshooting for overload, internal fan, DC bus, control supply, PFC, and inverter faults.
Addresses UPS shutdown via communication, wiring errors, battery source, and bypass availability.
Inspect unit for damage, choose location, and determine installation type.
Instructions for setting up the UPS in a vertical orientation.
Describes the ON, Alarm Silence, and Manual Battery Test functions.
Explains the dual function of the Standby/Manual Bypass button.
Details load/battery indicators and status indicator LEDs.
Covers the AC Input indicator LED and output voltage configuration.
Explains how to diagnose problems using LED status and audible alarms.
Addresses problems with UPS startup, battery illumination, and reduced battery time.
Covers troubleshooting for overload, internal fan, DC bus, control supply, PFC, and inverter faults.
Addresses UPS shutdown via communication, wiring errors, battery source, and bypass availability.
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