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Troubleshooting
Table 5-3: Troubleshooting problems after UPS startup continued
Symptom Possible Cause Suggested Action
All LEDs flash on and off
together.
Autocalibration is in process. Wait for continuous Utility
LED.
Redundant LED and audible
alarm frequently turn on and
off.
Redundancy mode is not
available.
Reduce output load to allow
system to remain in
Redundancy mode.
Audible alarm sounds.
Bypass LED and Alarm LED
are lit.
UPS is on bypass. Do one of the following:
• Scroll through the LCD
menu to view current
alarms.
• Use the power
management software to
view the alarm history to
determine the reason for
the transfer to Bypass
mode.
Audible alarm sounds.
Battery LED and Alarm LED
are lit.
Redundant LED is off.
UPS is on battery. Do one of the following:
• Scroll through the LCD
menu to view current
alarms.
• Use the power
management software to
view the alarm history to
determine the reason for
the transfer to Battery
mode.
Audible alarm sounds.
Battery LED, Alarm LED, and
Redundant LED are lit.
UPS is on battery. Do one of the following:
• Scroll through the LCD
menu to view current
alarms.
• Use the power
management software to
view the alarm history to
determine the reason for
the transfer to Battery
mode.
continued
HP Uninterruptible Power System R12000 XR Models User Guide 5-11
HP CONFIDENTIAL Codename: Sierra Part Number: 146316-002 Last Saved On: 1/24/03 10:20 AM