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5: TROUBLESHOOTING
Use the chart below to solve minor UPS installation and operation problems. Refer to www.apc.com
with complex UPS problems.
PROBLEM AND/OR POSSIBLE
C
AUSE
S
OLUTION
UPS WILL NOT TURN ON
UPS not connected to utility
power supply.
Check that the power cord from the UPS to the utility power supply is se-
curely connected at both ends.
Battery not connected prop-
erly.
Check that battery connector on the rear panel is fully snapped into position.
Very low or no utility voltage. Check the utility power supply to the UPS by plugging in a table lamp. If the
light is very dim, have the utility voltage checked.
UPS WILL NOT TURN OFF
Internal UPS fault. Do not attempt to use the UPS. Unplug the UPS, unplug the battery connec-
tor on the rear panel, and have it serviced immediately.
UPS BEEPS OCCASIONALLY
Normal operating UPS beeps
when running on battery.
None. The UPS is protecting the connected equipment from occasional util-
ity power irregularities.
UPS IS NOT PROVIDING EXPECTED BACKUP TIME
The UPS battery is weak due
to a recent outage or is near
the end of the service life.
Charge the battery. Batteries require recharging after extended outages, and
wear faster when frequently put into service or when operated at elevated
temperatures. If the battery is near the end of the service life, consider re-
placing even if the replace battery LED is not yet illuminated.
LEFT HALF, RIGHT HALF, OR CENTER SECTION OF FRONT PANEL LEDS ARE FLASHING
Internal UPS fault. The UPS
has shut down.
Do not attempt to use the UPS. Turn off the UPS, unplug the battery connec-
tor on the rear panel, and have it serviced immediately.
FRONT PANEL LEDS FLASH SEQUENTIALLY
The UPS has been shut down
remotely through software or
an optional accessory card.
None. The UPS will restart automatically when utility power returns.
ALL LEDS ARE OFF AND THE UPS IS PLUGGED INTO A WALL OUTLET
The UPS is shut down or the
battery is discharged from an
extended outage.
None. The UPS will return to normal operation when the power is restored
and the battery has a sufficient charge.