Tsun G3 - Fault Code and Troubleshooting; Maintenance Guide; Routine Maintenance

G3&G3 plus Microinverter
V1.0
24
Fault Code and Troubleshooting
Code
Fault Information
Troubleshooting
1
PV1VoltOver_Fault
Check the voltage of the PV module and make sure that the
voltage is below the maximum DC input voltage of the
microinverter.
If this fault appears continuously, please contact the TSUN
service.
2
PV2VoltOver_Fault
3
PV1VoltLow_Fault
This warning mostly appears in the morning or at dusk. It’s
normal and will disappear automatically.
If this warning appears in the daytime, please check the
connection of the PV module.
If this fault appears continuously, please contact the TSUN
service.
4
PV2VoltLow_Fault
5
PV1CurrOver_Fault
Disconnect the AC power to restart the microinverter.
If this fault appears continuously, please contact the TSUN
service.
6
PV2 CurrOver_Fault
7
No Utility
The AC power grid is disconnected. Check the AC power
grid.
If this fault appears continuously, please contact the TSUN
service.
8
GridVoltOverRating
The AC power grid is abnormal. This fault will disappear
automatically when the AC power grid is normal.
If this fault appears continuously, please contact the TSUN
service.
9
GridVoltUnderRating
10
GridFreqOverRating
11
GridFreqUnderRating
12
OverTemp
Check the installation of the microinverter. Make sure the
microinverter has good heat dissipation。
If this fault appears continuously, please contact the TSUN
service.
13
GFDI_Fault
This is an internal fault. Disconnect the AC power to restart
the microinverter.
If this fault appears continuously, please contact the TSUN
service.
14
Fault 01 - 08
Disconnect the AC power to restart the microinverter.
If this fault appears continuously, please contact the TSUN
service.
Maintenance Guide
Routine Maintenance
 Only authorized personnel are allowed to carry out the maintenance operations and are
responsible for reporting any anomalies.