CPS1500PIE
Copyright © 2014 CyberPower Systems, Inc.
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2.
The following table shows the information about the error codes on the LCD display AFTER the
machine shutdown. The LCD will show the message till the EPS runs out of battery.
Error Type
Error Code
Possible cause
Line Mode Error
E0
AVR Fail
AVR broke down
E1
Battery Overcharge
Charger broke down
Battery Mode
Error
E10
Output Overvoltage
Output voltage detector broke down
E11
Battery Overvoltage
Unexpected battery module
System Error
E20
Battery Mode No Output
Voltage
EPS/connected devices short circuit
Output voltage detector broke down
Inverter broke down
E21
Utility Mode No Output
Voltage
EPS/connected devices short circuit
Output voltage detector broke down
Input relay broke down
E22
Output Overload
Too many connected devices
Output voltage detector broke down
E23
Transformer Overheat
Over temperature of Transformer
E24
Inverter Overheat
Over temperature of Heat Sink
E25*
Turned Off By EPO
Shutdown by EPO
E26
AC Input Over Current
Low AC input voltage
E27
Abnormal Input Current
Feedback
Input current sensor broke down
E28
Abnormal Output Current
Feedback
Output current sensor broke down
*It is only for the products equipped with EPO.
After the EPS shutdown, the Fault Mode icon will also illuminate on the LCD display together
with the error code, indicating there is a problem with the machine. Please contact CyberPower
Systems or local agent for further help and support.
