Troubleshooting
HP UPS R12000 XR Models Maintenance and Service Guide
5-11
HP CONFIDENTIAL
Codename: Sierra Part Number: 221273-001 Last Saved On: 7/31/02 8:59 AM
Problems After Startup
If problems occur after starting the UPS, refer to Table 5-3 for possible causes and suggested
actions.
Table 5-3: Troubleshooting Problems After UPS Startup
Symptom
Possible Cause
Actions to Take
Audible alarm sounds.
Alarm LED is lit.
An alarm condition exists.
Scroll through the LCD menu
for system
Alarms
to
determine the cause.
Bypass LED is flashing.
Automatic Bypass mode is not
available.
Scroll through the LCD menu
for system
Alarms
to
determine the cause.
Manual Bypass mode is
not
recommended during this
condition.
Utility LED is flashing slowly,
and all other LEDs are off.
Utility power is within
acceptable range.
The UPS is operating normally
and is in Standby mode.
Press the On button to
assume the load.
Utility LED is flashing rapidly.
The full UPS or an electronics
module is in the process of
starting up.
Wait for a continuous Utility or
Battery LED light, or slowly
flashing Utility LED.
All LEDs flash on and off
together.
Autocalibration is in process.
Wait for a continuous Utility
LED.
Redundant LED and audible
alarm frequently turn on and
off.
Redundant mode is not
available.
Reduce the output load to
allow the system to remain in
Redundant mode.
Audible alarm sounds.
Bypass LED and Alarm LED
are lit.
UPS is in Bypass mode.
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.
continued