11
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
CAUSE
SOLUTION
UPS WILL NOT TURN ON
Battery not connected prop-
erly.
Check that the battery connector is fully snapped into position.
button not pushed. Press the button once to power the UPS and the connected equipment.
UPS not connected to utility
power supply.
Check that the power cord is securely connected at both ends.
Very low or no utility voltage
present.
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
The UPS is experiencing an
internal fault.
Do not attempt to use the UPS. Unplug the UPS and have it serviced imme-
diately.
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.
They can wear faster when put into service often or when operated at ele-
vated temperatures. If the battery is near the end of the service life, consider
replacing the battery even if the replace battery LED is not yet illuminated.
ALL LEDS ARE ILLUMINATED AND THE UPS EMITS A CONSTANT BEEPING
The UPS is experiencing an
internal fault.
Do not attempt to use the UPS. Turn off the UPS and have it serviced imme-
diately.
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.