8 Troubleshooting
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8.2 Messages and Error Codes
The system status is identified through message or
error codes appearing on the LCD. When the system
appears error status, the LCD will show correspond-
ing message. The table that follows summarizes the
messages that can be displayed.
Message Code Description Solutions
Grid Volt Fault 01 Grid Overvoltage or
Undervoltage
· Check whether AC grid(voltage and
frequency) is beyond the scope;
· Check whether the connection of AC
side is correct;
Grid Freq Fault 02 Grid Over frequency or Under
frequency
PV1 Volt Fault 03 PV1 Input Under voltage or
Over voltage
· Check whether the output voltage of
PV array is in the allowing range.
· Check whether the insulation of PV
cable is good;
· Inspect whether the installation is
correct according to the manual.
· If still at fault, please ask for help.
PV1 Cur Fault 04 PV1 Input Over current
PV2 Volt Fault 05 PV2 Input Under voltage or
Over voltage
PV1 Cur Fault 06 PV2 Input Over current
GFCI 300mA 07 Ground leakage over 300mA
GFCI 30mA 08 Ground leakage jump over
30 mA
GFCI 60mA 09 Ground leakage jump over
60 mA
GFCI 150mA 10 Ground leakage jump over
150 mA
Relay Fault 11 Relay abnormity Ask for help if still at fault after
rebooting.