Troubleshooting Guide; Table 5 Troubleshooting Guide - Liebert GXT2-10000RT208 User Manual

Table 5

Troubleshooting guide

Problem
UPS fails to start when the
ON button is pressed.
Battery indicator is
illuminated.
UPS has reduced battery
time.
Fault and Bypass indicators
and all Load Level indicators
are illuminated.
Fault and Bypass indicators
and diagnostic indicator C are
illuminated.
Fault and Bypass indicators
and diagnostic indicator D are
illuminated.
Fault and Bypass indicators
and diagnostic indicator A are
illuminated.
Fault and Bypass indicators
and diagnostic indicator B are
illuminated.
Fault and Bypass indicators
and diagnostic indicator E are
illuminated.
Fault and Bypass indicators
and diagnostic indicators A
and B are illuminated.
Fault indicator and diagnostic
indicators A and C are
illuminated.
Fault indicator and diagnostic
indicators A and D are
illuminated.
Cause
UPS is short-circuited or
overloaded.
UPS not plugged in.
UPS input protection fuse
has blown/opened.
Utility 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 control power supply
fault.
UPS PFC (Power Factor
Correction Circuit) fault.
UPS internal fan has a
problem or UPS shutdown
due to temperature
condition. Load is on bypass
power.
UPS internal DC bus
overvoltage.
UPS inverter fault.
Inverter-to-Inverter
Communications Failure
UPS failed the battery test.
L1 to L2 phase angle
unacceptable.
40
Solution
Ensure the UPS is OFF. Disconnect all loads and ensure
nothing is lodged in output receptacles.
Ensure the loads are not defective or shorted internally.
UPS is operating in Battery Mode, make certain UPS is
securely plugged into the wall receptacle.
UPS is operating in Battery Mode. Save data and close
applications. Replace UPS input fuse, then restart UPS.
UPS is operating in 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 the Liebert Worldwide Support Group for
replacement battery kit.
Check load level display and remove non-essential loads.
Recalculate the load and reduce number of loads
connected to UPS. Check load equipment for faults.
UPS requires service. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
UPS requires service. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
Ensure the UPS is not overloaded, ventilation openings
are not blocked and 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.
UPS requires service. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
UPS requires service. Contact your local dealer, Liebert
Representative or the Liebert Worldwide Support Group.
UPS requires service. Contact your local dealer, Liebert
Representative or the Liebert Worldwide Support Group.
Replace batteries. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
Only phase angles of 120, 180 or 240 degrees
(±10 degrees) are permitted. These must be compatible
with the selections in the configuration program.
Or the phase angle has changed while the UPS was
running. The phase angle is detected at startup and
cannot be changed to a different power source while
running.
Turn the UPS Off and wait until the fans stop. Apply input
AC power. The UPS will reprogram the phase angle to
match the utility, if the utility is 120, 180 or 240 degrees
between L1 and L2. If this does not resolve the issue,
contact a qualified electrician to verify the site wiring.
Troubleshooting
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