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Table 6. Troubleshooting guide (continued)
Alarm or condition
Continuous audible alarm.
Possible cause
Power requirements exceed
uninterruptible power supply
capacity (103 to 110% for
30 seconds) or the load is
defective.
Uninterruptible power supply
internal temperature is too
high.
Momentary overload
Uninterruptible power supply
fault condition
Action
Turn off and disconnect the uninterruptible power
supply. Remove some of the connected devices from
the uninterruptible power supply. Wait at least 5
seconds until all LEDs are off and restart the
uninterruptible power supply. You might need to
obtain a larger capacity uninterruptible power supply.
The uninterruptible power supply switches to Bypass
mode, allowing the uninterruptible power supply to
cool. Turn off and disconnect the uninterruptible
power supply. Clear vents and remove any heat
sources. Make sure that the airflow around the
uninterruptible power supply is not restricted. Wait at
least 5 minutes and restart the uninterruptible power
supply. If the condition persists, contact your service
representative.
The uninterruptible power supply switches to Bypass
mode. Repeat overloads will lock on bypass for one
hour; press the On button for immediate return.
Save your work and turn off the connected devices.
Turn off and disconnect the uninterruptible power
supply. Contact your technical-support representative.
The alarm cannot be silenced.
Chapter 6. Troubleshooting
41
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