Troubleshooting Chart; Table 2 Troubleshooting Chart - Liebert PowerSure PSI 1000 - 3000VA 60 Hz 120V User Manual

Table 2

Troubleshooting chart

Problem
UPS will not start
UPS starts on battery, but will not
switch to AC
UPS shuts down
AC Input is flashing
All Battery Level Indicators
flashing
Battery Indicator illuminated
amber; long beep every minute
Over Temp Indicator flashing
Fault Indicator lit but UPS is On
NOTE
The 1920VA UPS will sound an Overload alarm under certain Low Line conditions when it is
fully loaded and it exceeds the input current rating. Unless the load is reduced, the condition
will trip the branch circuit breaker.
Cause
Short circuit
Battery disconnected or is
completely discharged
UPS not plugged in
Circuit protector tripped
Input voltage below threshold
AC overvoltage
Load exceeded UPS capacity
(110%), All Load Level Indicators
are illuminated; continuous beep
Over temperature shutdown, Over
Temp Indicator lit; continuous
beep
MultiLink shutdown
Internal UPS fault, Fault Indicator
Lit; continuous beep
UPS shutdown due to a command
from the communications port(s),
Load Level 0-25% Indicator
illuminated
Site Wiring Fault, UPS detected a
line-to-neutral reversal or a loss of
proper grounding.
UPS is unable to perform manual
or remote battery test; beep every
half second for five seconds
UPS failed battery test
Batteries weak
Batteries need to be replaced
Over temperature warning; beep
every half second
Fault warning; beep every half
second
25
Solution
Check the circuit protector on the rear of the UPS.
If it is tripped, reset it and restart the UPS. For
further help, contact your local dealer, Liebert
representative or the Liebert Worldwide Support
Group.
Check for proper connection of battery or
batteries.
Plug in the power cord securely.
Reset the circuit protector and restart the UPS.
Wait until the voltage rises to an appropriate level
or have the utility power checked by a qualified
electrician.
Wait until voltage lowers to an appropriate level
or have the utility power checked by a qualified
electrician.
Check load level display and remove non-
essential loads. Recalculate the load and reduce
number of loads connected to UPS - the total
wattage of your equipment must not exceed the
capacity of the UPS.
Make sure that the UPS is operating in 32°F to
104°F (0°C to 40°C) and that it has adequate
ventilation.
Consult the MultiLink user manual or contact your
LAN administrator.
Contact your local dealer, Liebert representative
or the Liebert Worldwide Support Group.
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.
Have the utility checked by a qualified electrician.
Check battery connections,
completely power down and restart UPS.
NOTE: If the battery circuit opens while the UPS
is running, it will be detected when the next
battery test is performed.
Initiate battery test again.
Recharge batteries.
Replace batteries.
Make sure that the UPS is operating in 32°F to
104°F (0°C to 40°C) and that it has adequate
ventilation.
Reset UPS.
Troubleshooting