8 Troubleshooting
43
Message Code Description Solutions
DC Reverse 24 DC Reverse · 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.
System Fault 25 System Fault Ask for help.
PV1 Always low 26 (Warning) Check PV1 array.
PV2 Always low 27 (Warning) Check PV2 array.
Bus OVP 28 Bus OVP Ask for help.
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