UPS R3000 XR Models User Guide

Troubleshooting
HP Uninterruptible Power System R3000 XR Models User Guide 5-3
Table 5-2: Troubleshooting Problems After UPS Startup continued
Symptom Possible Cause Suggested Action
Utility LED ( ) is flashing
green.
The utility power is within
acceptable range, and output
is off.
Press the On button.
UPS frequently switches
between utility and battery
power.
Utility power variations. The utility voltage is frequently
outside the UPS operating
range. Update the
configuration.
Contact a qualified electrician
to verify that the utility power is
suitable for the UPS.
Overload LED is red. The 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.
On Battery LED ( ) is
flashing red.
Low battery voltage. If the UPS is supplying battery
power, save files and shut
down the system. Allow the
batteries to charge.
If the UPS is supplying utility
power, no action is required.
Allow the batteries to charge.
Insufficient warning of low
batteries.
Battery service is required. Allow the batteries to charge
for 24 hours, then initiate a
self-test. If the LED is red,
replace the batteries.
Shutdown Delay configuration
is inappropriate.
Update the Shutdown Delay
from 5 seconds to 3 minutes.
Use power management
software to specify a suitable
delay.
Utility LED ( ) is solid red,
General Alarm LED ( ) is
flashing red, there is an
audible alarm and unit is in
Auto-Bypass mode.
A potential for overload exists. Reduce the load.
Utility LED ( ) is flashing and
unit is in Auto-Bypass mode.
Over-temperature condition
may exist.
Verify that no blockage of
airflow to the front bezel and
rear panel exists.
The power module may have
failed.
Contact an HP authorized
service representative.
All LEDs are flashing red and
an audible alarm cannot be
silenced.
An internal UPS fault condition
exists.
Power down the UPS. Contact
an HP authorized service
representative.