51
52
Inverter will stop discharging battery
automatically.
Inverter will charge battery
automatically.
60
Upgrade the firmware of BMS.
BMS doesn’t allow inverter
to discharge battery.
BMS require inverter to
charge battery.
07
09
6.Warning Code Table
25
26
Internal components failed.
Restart the unit, if the error happens again, please return to
repair center.
The DC component of the
inverter current is abnormal
Inverter current sensor failed
Bus voltage is too low
Bus voltage is too high
Bus soft start failed
Over temperature happen
at heat sink
The inner temperature over
Leakage current fault
Restart the unit, if the error happens again, please return to
repair center.
Restart the unit, if the error happens again, please return to
repair center.
Restart the unit, if the error happens again, please return to
repair center.
AC Surge or internal components failed.
Restart the unit, if the error happens again, please return to
repair center.
Internal components failed.
Restart the unit, if the error happens again, please return to
repair center.
Check whether the ambient temperature is too high.
Check whether the ambient temperature is too high.
Restart the unit, if the error happens again, please return to
repair center.
OP current sensor failed
Output voltage is too low
Output voltage is too high
Over current or surge
detected by Software
Output current sensor failed
Reduce the connected load.
Restart the unit, if the error happens again, please return to
repair center.
Restart the unit, if the error happens again, please return to
repair center.
Restart the unit, if the error happens again, please return to
repair center.
21
22
23
24
25
26
28
29
30
31
33
34
35
38
Restart the unit, if the error happens again, please return to
repair center.
Leakage current sensor failed
39
Hybrid solar inverter
Hybrid solar inverter
7.Troubleshooting
This chapter describes the fault alarm and fault code for quick troubleshooting.
Table 7-1 Fault code
PV voltage is too high
Over current happen at PV port
Battery voltage is too high
Over current happen
at Battery
Abnormal LLC
Over current happen
at Buckboost
Reduce the number of Pv modules in series.
Restart the unit, if the error happens again, please
return to repair center.
Check if spec and quantity of batteries are meet
requirements.
Restart the unit, if the error happens again, please
return to repair center.
Restart the unit, if the error happens again, please
return to repair center.
Restart the unit, if the error happens again, please
return to repair center.
01
02
07
08
10
11
Buckboost soft start failed
BuckBoost is out of balance
Restart the unit, if the error happens again, please
return to repair center.
Restart the unit, if the error happens again, please
return to repair center.
13
14
Overload time out
The output overcurrent
is abnormal
Output short circuited
Reduce the connected load by switching off some
equipment.
Restart the unit, if the error happens again, please
return to repair center.
Check if wiring is connected well and remove abnormal load.
17
18
19
Isolation resistance to ground
of the PV string is too low
Restart the unit, if the error happens again, please return
to repair center.
40
Buckboost current sensor failed
NO.2 Buckboost current
sensor failed
Restart the unit, if the error happens again, please
return to repair center.
Restart the unit, if the error happens again, please
return to repair center.
15
16
Grounding errors
1.Confirm correct grounding.
2.Restart the unit, if the error happens again, please return
to repair center.
41
Invert soft start failed
Hardware detect over
current at inverter port
Stort circuit happen at
PV port
Check if wiring is connect well.
04