Troubleshooting
HP Uninterruptible Power System R1500 XR Models User Guide 5-3
Table 5-1: Troubleshooting continued
Symptom Possible Cause Suggested Action
The On Battery LED
( ) is red and an
audible alarm sounds.
The UPS is running on battery
power.
Save your current work and prepare to
power down the system.
The On Battery LED
(
) is flashing red,
the General Alarm
LED ( ) is flashing
red, and an audible
alarm sounds.
The output voltage is out of
spec while the UPS is on battery
power.
Contact an authorized service provider.
The On Battery LED
( ) is flashing red, the
Utility LED (
) is solid
red, and an audible
alarm sounds.
The battery voltage is low. If the UPS is supplying battery power,
save your current work and power
down the system. Allow the batteries to
charge.
If the UPS is supplying utility power, no
user intervention is required. Allow the
batteries to charge.
The Bad Battery/Low
Battery LED (
) is
flashing red.
The battery voltage is low
because the UPS has been
out-of-service for a long period.
Allow the UPS to charge the batteries
for 24 hours. Initiate a self-test. If the
Bad Battery/Low Battery LED does not
turn off, replace the batteries.
The battery is disconnected. Install the battery pack. If the battery
pack is installed, remove the pack and
then insert it again.
The Site Wiring Fault
Indicator ( ) is
flashing red.
No ground connection exists
between utility power and the
UPS or the line and neutral
wires are reversed in the wall
outlet.
Contact a qualified electrician to
correct the wiring.
The UPS voltage configuration
is incorrect.
Update the configuration.
The Overload LED is
red.
Protected devices are
exceeding the UPS power
rating.
Remove one or more devices to
reduce the power requirements.
The UPS may switch from utility
to battery power.
Verify that the devices are not
defective.
All LEDs are flashing
red and an audible
alarm cannot be
silenced.
An internal UPS fault condition
exists.
Power down the UPS. Contact an
authorized service representative.
continued
