User Manual 41 / 43 CPS Mini Central series
11.
Trouble shooting
Our quality control program assures that every inverter is manufactured to accurate
specifications and is thoroughly tested before leaving our factory. If you have difficulty in the
operation of your inverter, please read through the following information to correct the
problem.
Warning code Meanings
Suggestion
Warning 103
Reading EEPROM fail
Restart inverter, if problem still exist, Contact
CyberPower.
Warning 104
DSP and COM firmware version
unmatch
Contact CyberPower.
Warning 105
Writing EEPROM fail
Restart inverter, if problem still exist, Contact
CyberPower.
Warning 108
PV is short
Contact CyberPower.
Warning 109
BOOST drive abnormal
Contact CyberPower.
Error code
Meanings
Suggestion
Error 101
Internal communication with
host failed
Contact CyberPower.
Error 107
Voltage circuit fail
Contact CyberPower.
Error 117
Inverter relay fault
Contact CyberPower.
Error 119
Residual current sensor error or
circuit failure
Contact CyberPower.
Error 120
Output current unbalance
Contact CyberPower.
Error 121
Internal communication with
slave failed
Contact CyberPower.
Error 122
Internal bus over/under voltage
Contact CyberPower.
Error 124
No AC Connection
The grid is not connected to the
Inverter .Please check the grid connection
Error 125
PV Isolation Low
PV Insulation value is outrange. Please check
the PV Cable
Error 126
Residual I High
Residual current is above limit . Please check
the PV and AC Cable.
Restart inverter, if
problem still exist, Contact CyberPower.
Error 127
Output high DCI
Contact CyberPower.
Error 128
PV Voltage High
PV input voltage is above 1000V . Please check
the solar panel configuration and wiring
Error 129
AC V Outrange
The grid voltage is outrange . Please check the
grid voltage by the LCD
Error 130
AC F Outrange
The grid frequency is outrange. Please check
the grid voltage by the LCD
Error 131
Temperature over limit
Restart inverter, if problem still exist, Contact
CyberPower.