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4-2
Compaq UPS R3000 XR Maintenance and Service Guide
Table 4-1
Troubleshooting Guide (UPS Start)
continued
Symptom Possible Cause Suggested Action
Bad Battery/Low Battery LED is
flashing red
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 LED does not turn
off, replace the batteries.
The battery test failed. Allow the UPS to charge the
batteries for 24 hours. Initiate a
self-test. If the LED does not turn
off, replace the batteries.
The battery is disconnected. Install the battery pack. If the
battery pack is installed, remove it
and then insert it again.
Troubleshooting After Start
For problems that occur after the UPS has gone through the startup self-test sequence, these
suggested actions address possible causes.
Table 4-2
Troubleshooting Guide (After Start)
Symptom Possible Cause Suggested Action
Audio Alarm sounds An alarm condition exists. Identify the red LED associated
with the alarm condition. Check
this troubleshooting guide to
determine the cause of the alarm.
Utility LED and On Battery LED are
flashing red
The utility voltage is too high. The utility voltage is higher than
the UPS operating range. The UPS
switches to battery power. If this
happens repeatedly, update the
configuration.
Contact a qualified electrician to
ensure that utility power is
suitable for the UPS.
Utility LED and On Battery LED are
flashing red
The utility voltage is too low. The utility voltage is lower than
the UPS operating range. The UPS
switches to battery power. If this
happens repeatedly, update the
configuration.
Contact a qualified electrician to
ensure that utility power is
suitable for the UPS.
continued