10
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
S
OLUTION
UPS not connected to utility
power supply.
Check that the power cord from the UPS to the utility power supply is
securely connected at both ends.
Battery not connected
properly.
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
connector on the rear panel, and have it serviced immediately.
Normal operating UPS beeps
when running on battery.
None. The UPS is protecting the connected equipment from occasional
utility power irregularities.
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
replacing even if the replace battery LED is not yet illuminated.
LEFT 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
connector 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.
THE INPUT CIRCUIT BREAKER HAS TRIPPED
The UPS is overloaded. The
plunger on the circuit breaker
has popped out.
Reduce the load on the UPS by unplugging equipment. Press in the plunger
on the circuit breaker.
THE AVR BOOST OR AVR TRIM LEDS ARE ILLUMINATED
The system is experiencing
excessive periods of low or
high voltage.
Seek qualified service personnel to check your facility for electrical
problems. If the problem continues, contact the utility company for further
assistance.
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