NCR 4072 - Page 52

Troubleshooting
46
NCR 4072 UPS Site Preparation, Installation, and Operation Manual S 05147374 Rev C Uncontrolled Copy
ActionPossible CauseAlarm or Condition
Continuous
beep.
UPS internal
temperature is too high.
Shutdown is imminent. Save your work and turn
off your equipment. Turn off the UPS.
Clear vents and remove any heat sources.
Ensure the airflow around the UPS is not
restricted. Wait at least 5 minutes and restart
the UPS. If the condition persists, contact
Customer Service.
Continuous
beep.
UPS fan fault
(750–1400 VA models
only).
Save your work and turn off your equipment.
Turn off the UPS. Contact Customer Service.
3 beeps every 10
seconds.
Failed attempt to start
the UPS on battery.
Plug the UPS into a power outlet for 24 hours to
charge the battery. After charging the battery,
press and hold the button for 3 seconds;
then check the indicator.
If the indicator still flashes, see “Replacing
Batteries” on page 34 to replace the battery.
Continuous
beep.
Theoutputwaveis
abnormal while the UPS
is on battery.
Shutdown is imminent. Save your work and turn
off your equipment. Turn off the UPS. Contact
Customer Service.
Continuous
beep.
Theoutputvoltageis
below or above the limit
while the UPS is on
battery.
Save your work and turn off your equipment.
Turn off the UPS. Contact Customer Service.