Troubleshooting - Liebert UPSTATION GXT 2U User Manual

UPS input protection fuse has blown/opened.
Problem
UPS fails to start
when the ON button
is pressed.
Battery indcator
LED is illuminated
UPS has reduced
battery time
Fault and Bypass
indicator LEDs and
all load level LEDs
are illuminated.
Fault and Bypass
indicator LEDs and
diagnostic LED A
are illuminated.
Fault and Bypass
indicator LEDs and
diagnostic LED B
are illuminated.
Fault and Bypass
indicator LEDs and
diagnostic LED C
are illuminated.

TROUBLESHOOTING

Cause
UPS is short cir-
cuited or overloaded
UPS not plugged in
Mains voltage out of
UPS input range.
Batteries are not
fully charged.
UPS is overloaded.
Batteries may not
be able to hold a full
charge due to age.
UPS overloaded or
load equipment is
faulty.
UPS internal fan
has a problem or
UPS shutdown due
to temperature con-
dition. Load is on
bypass power.
UPS internal DC
bus overvoltage.
UPS control power
supply fault.
29
Solution
Ensure UPS is OFF. Disconnect all loads
and ensure nothing is lodged in output
sockets. Ensure loads are not defective
or shorted internally.
UPS is operating from battery mode,
make certain UPS is securely plugged
into the wall socket.
UPS is operating from battery mode.
Save data and close applications.
Ensure utility supply voltage is within
acceptable limits for UPS.
Keep UPS plugged in continuously at
least 24 hours to recharge batteries.
Check load level display and reduce the
load on the UPS.
Replace batteries. Contact your local
dealer, Liebert Representative, or Lie-
bert Worldwide Support Group for
replacement battery kit.
Check load level display and remove
non-essential loads. Recalculate load
VA and reduce number of loads con-
nected to UPS. Check load equipment
for faults.
Ensure UPS is not overloaded, ventila-
tion openings not blocked, or room ambi-
ent temperature 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.
UPS requires service. Contact your local
dealer, Liebert Representative or the Lie-
bert Worldwide Support Group.
UPS requires service. Contact your local
dealer, Liebert Representative or the Lie-
bert Worldwide Support Group.