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HP Uninterruptible Power System R1500 XR Models User Guide 5-1
5
Troubleshooting
This chapter serves as a troubleshooting guide when problems occur with the UPS. Solutions
for UPS problems that occur both during and after startup are covered.
Troubleshooting
If problems occur when starting or using the UPS, refer to Table 5-1 for possible causes and
suggested actions.
Table 5-1: Troubleshooting
Symptom Possible Cause Suggested Action
The UPS does not
start.
There is no utility power. Check power at the utility power
receptacle or contact a qualified
electrician.
The UPS power cord is
disconnected.
Connect the power cord.
An audible alarm
sounds.
An alarm condition exists. Identify the red LED associated with
this alarm condition. Check this
troubleshooting guide to determine the
cause of the alarm.
The Utility LED ( ) is
flashing green and
power is not available
at the UPS
receptacles.
The UPS is in Standby mode. Press the On button to supply power to
the connected equipment.
The Utility LED ( )
alternates from red to
green and the
General Alarm LED
(
) is flashing red.
There is a thermal fault. The
UPS internal temperature is too
high.
Power down and unplug the UPS.
Clear vents and remove any heat
sources. Verify that the airflow around
the UPS is not restricted. Wait at least
5 minutes and restart the UPS. If the
condition persists, contact an
authorized service representative.
The General Alarm
LED ( ) is red and
an audible alarm
sounds.
There is a thermal issue with the
UPS.
Contact an authorized service
representative.
continued