12 Trouble-shooting
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F-101
High DC input voltage
1. Disconnect the DC switch, remove the DC connector, measure the voltage of the PV string, and
check if it exceeds the input-voltage specification of the inverter.
2. If exceed the specification, re-layout the PV module string.
3. If not exceed the specification, while the error still exits, please contact Customer Service.
F-103
Unconnected grid
1. Turn off DC switch, remove AC connector, measure the voltage between fire line and the zero
line, then check if it is consistent with the grid-connected specification of inverter.
2. Inconsistent, check if the AC main switch is connected, check if the power supply is normal
working.
3. Consistent, connect the AC connector, turn on the DC Switch.
4. If error message still exists, contact Customer service.
F-104
Inverter grid-connected
relay fault
Contact Customer service.
F-105
Grid frequency fault
1. If power grid frequency returns to normal, the inverter will restore the grid connection
automatically.
2. If error message still exists, contact Customer service.
F-106
Grid voltage fault
1. Turn off DC switch, remove AC connector, measure the voltage between fire line and the zero
line, then check if it is consistent with the grid-connected specification of inverter.
2. Inconsistent, check the grid layout.
3. Consistent, connect the AC connector, turn on DC Switch, inverter will restore the grid
connection automatically.
4. If error message still exists, contact Customer service.
F-107
DC component over range
1. Restart inverter.
2. If error message still exists, contact Customer service.
F-108
Current sensor fault
1. Wait until inverter restores normal work.
2. If error message still exists, contact Customer service.
F-109
Fail safe
1. Check the cable connection of CT or meter.
2. Restart inverter.
3. If error message still exists, contact Customer service.
F-110
Leakage current detection
unit fault
1. Check if there is any PV cable breakage.
2. Check if the PV modules grounding improperly.
3. Restart inverter.
4. If error message still exists, contact Customer service.
F-111
Leakage current fault
1. Check if PV strings grounding properly.
2. If error message still exists, contact Customer service.
F-112
DC insulation fault
1. Check if inverter grounding properly.
2. Check if the positive and negative poles of PV modules are short out to the PE cable.
3. Wait until inverter restores normal work.
4. If error message still exists, contact Customer service.
F-113
Leakage current detection
consistency error (Major)
1. Restart the inverter.
2. If error message still exists, contact Customer service.
F-114
Frequency detection
consistency error (Major)
1. Restart the inverter.
2. If error message still exists, contact Customer service.
F-115
Power grid voltage
detection consistency
error (Major)
F-116
Leakage current detection
consistency error (Minor)
F-117
Frequency detection
consistency error (Minor)
F-118
Power grid voltage
detection consistency
error (Minor)
F-123
Secondary memory failure 1. Restart the inverter.
2. If error message still exists, contact Customer service.
F-124
Clock failure