Back-UPS BR900G-RS Installation and Operation8
Troubleshooting
Problem Possible Cause Corrective Action
Back-UPS will not turn on. The Back-UPS is not connected to AC
power.
Be sure the Back-UPS is securely connected to a
AC outlet.
The circuit breaker has been tripped. Disconnect non-essential equipment from the
Back-UPS. Reset the circuit breaker. Re-connect
equipment one item at a time. If the circuit
breaker trips again, disconnect the device that
caused the event.
The internal battery is not connected. Connect the battery.
The AC input voltage is out of range. Adjust the transfer voltage and sensitivity range.
The Back-UPS does not provide
power during a AC power outage.
Ensure that essential equipment is not
plugged into a
SURGE ONLY outlet.
Disconnect equipment from the
SURGE ONLY
outlet and connect to a B
ATTERY BACKUP
outlet.
The Back-UPS is operating on
battery power, while connected to
AC power.
• The Back-UPS power cable is not
securely connected to the wall outlet.
• The wall outlet is no longer receiving AC
power.
• The circuit breaker has been tripped.
Be sure the plug is fully inserted into the wall
outlet. Be sure the wall outlet is receiving AC
power by checking it with another device.
The Back-UPS is running an automatic self
test.
No action is necessary.
• The AC input voltage is out of range.
• The frequency is out of range.
• The waveform is distorted.
Adjust the transfer voltage and sensitivity range.
The Back-UPS does not provide the
expected amount of backup time.
Battery Backup outlets may be
experiencing an overload condition.
Disconnect non-essential equipment from the
Battery Backup outlets and connect the equipment
to
SURGE ONLY outlets.
The battery was recently discharged due to
a power outage and has not fully recharged.
Charge the battery cartridge for 16 hours.
The battery has reached the end of its
service life.
Replace the battery.
The R
EPLACE BATTERY indicator
is illuminated.
The battery has reached the end of its useful
life.
Replace the battery.
The O
VERLOAD indicator is
illuminated.
The equipment connected to the Back-UPS
is drawing more power than the Back-UPS
can provide.
Disconnect non-essential equipment from the
Battery Backup outlets and connect the equipment
to S
URGE ONLY outlets.
The S
YSTEM FAULT indicator is
illuminated, all the front panel
indicators are flashing.
There is an internal fault. Determine which internal fault message is
displayed by matching the number displayed on
the LCD with the corresponding Fault Message
(see System Faults) and contact APC Technical
Support.
The Back-UPS is not supplying
power to all of the outlets.
Power to the C
ONTROLLED outlets has
intentionally been turned off.
Confirm that the correct peripherals are connected
to C
ONTROLLED outlets. If this feature is not
desired, disable the
Power-Saving M
ASTER and CONTROLLED
outlets.
The C
ONTROLLED outlets are not
supplying power, even though the
ASTER device is not in sleep mode.
The M
ASTER outlet threshold may be
incorrectly set.
Adjust the threshold when the MASTER outlet
signals the C
ONTROLLED outlets to shut down.
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