Liebert UPSTATION GXT 2U - Manual (Page 29)

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Fault and Bypass
indicator LEDs and
diagnostic LED A
are illuminated.
UPS internal fan has a
problem or UPS
shutdown due to
temperature condition.
Load is on bypass power.
Ensure UPS is not overloaded,
ventilation openings not blocked,
or room ambient temperature is
not excessive. Wait 30 minutes
to allow UPS to cool, then restart
UPS. IF UPS does not restart,
contact your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.
Fault and Bypass
indicator LEDs and
diagnostic LED B
are illuminated.
UPS internal DC bus
overvoltage.
UPS requires service. Contact
your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.
Fault and Bypass
indicator LEDs and
diagnostic LED C
are illuminated.
UPS control power
supply fault.
UPS requires service. Contact
your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.
Fault and Bypass
indicator LEDs and
diagnostic LED D
are illuminated.
UPS PFC (Power Factor
Correction Circuit) fault.
UPS requires service. Contact
your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.
Fault and Bypass
indicator LEDs and
diagnostic LED E
are illuminated.
UPS inverter fault. UPS requires service. Contact
your local dealer, Liebert
Representative or the Liebert
Worldwide Support Group.
Fault and Bypass
indicator LEDs and
diagnostic LED A
and C are
illuminated.
UPS failed the battery
test.
Replace batteries. Contact your
local dealer, Liebert
representative or the Liebert
Worldwide Support Group.
Fault and Bypass
indicator LEDs and
diagnostic LED C
and E are
illuminated.
UPS shutdown 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. For
assistance, contact your local
dealer, Liebert representative or
the Liebert Worldwide Support
Group.
Troubleshooting Guide (Continued)
Problem Cause Solution