8 Troubleshooting
42
Message
Code
Description
Solutions
No Utility
12
Missing Grid
· Check whether AC grid(voltage and
frequency) is beyond the scope;
· Check whether the connection of AC
side is correct;
· If still at fault, please ask for help.
Comm loss
13
Communication abnormity
Ask for help if still at fault after
rebooting.
Temp Fault
14
Temperature too high or low
Ask for help.
Fan Fault
15
Fan abnormity (Warning)
Check the fan. If not turn, contact to
exchange.
ISO Fault
16
ISO abnormity
· 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.
Unknown grid
17
Report unknown grid fault
when failing to detect
Ask for help.
EEPROM Fault
18
EEPROM read or write loss
Ask for help if still at fault after
rebooting.
DCI Fault
19
DCI over limit
Ask for help.
Short Circuit
20
Output Short Circuit
Ask for help.
Over Load
21
Inverter over load (Warning)
Ask for help.
Output OCP
22
Output Over current
Ask for help.
23
GFCI Hard Fault
Ask for help.
