Copyright © 2012 CyberPower Systems, Inc.
1
5
TROUBLE SHOOTING
Problem
Possible Cause
Solution
Warning
O/P Overload
Your equipment requires more power than the
UPS can provide. If the UPS is in Line Mode
then it will transfer to Bypass Mode; if the UPS is
in Battery Mode it will shutdown.
Shut off non-essential equipment. If this solves
the overload problem, the UPS will transfer to
normal operation.
Battery Mode
UPS is operating on battery power.
Save your data and perform a controlled-
shutdown.
Battery Low
UPS is operating on battery power and will be
shutting down soon due to extremely low battery
voltage.
UPS will restart automatically when acceptable
utility power returns.
BAT Disconnected/
Battery Replace
Missing battery power.
Check battery connector when use battery
packages.
UPS has failed in Battery Test.
Contact technical support to replace the battery.
Charger Failure
Charger has failed.
1. Shut down UPS and turn off AC input.
2. Contact CyberPower for repair.
EPO OFF
Missing the EPO connection.
Check the EPO connection.
Fault
Over Temperature
High ambient temperature.
1. Shut down UPS. Restart UPS to Check the
fan for operation and if the ventilation hole has
been covered
2. Contact CyberPower for repair.
Output Short
Output short circuit.
1. Shut down UPS
2. Your attached equipment may have problems,
please remove them and check again.
High O/P V
Output voltage is too high.
1. Shut down UPS
2. Contact CyberPower for repair.
Low O/P V
Output voltage is too low.
Bus Fault
Internal DC bus voltage is too high or too low.
Other
Startup fail
High temperature, or fan fail, or battery low, or
EPO off..
1. Restart UPS and
press the “▼” button to
view the warning event. Then refer to the solution
for the warning.
2. Contact CyberPower for repair.
CyberPower Systems Inc.
www.cpsww.com
Entire contents copyright
©
2012 CyberPower Systems Inc., All rights reserved. Reproduction in whole or in part without
permission is prohibited. PowerPanel
®
Business Edition and PowerPanel
®
Personal Edition are trademarks of
CyberPower Systems Inc.
