1. Inverter serial number;
2. Distributor or service center of the inverter ;
3. On-grid power generation date;
4. The problem description (including the fault code and indicator status displayed on the
LCD) is as detailed as possible.
5. Your contact information.In order to give you a clearer understanding of the inverter's
fault information, we will list all possible fault codes and their descriptions when the
inverter is not working properly.
In order to give you a clearer understanding of the inverter's fault information, we will list
all possible fault codes and their descriptions when the inverter is not working properly.
7. Fault information and processing
The energy storage inverter is designed according to the grid-connected operation
standard and meets the safety requirements and electromagnetic compatibility
requirements. Before leaving the factory, the inverter undergoes several rigorous
tests to ensure that the inverter can operate reliably.
If any of the fault messages listed in Table 6-1 appear on your inverter and
the fault has not been removed after restarting, please contact your local dealer
or service center. You need to have the following information ready.
Grid
Backup Load
On-Grid Home Load
Battery
Solar
On-Grid+AC couple
AC cable
DC cable
Single Phase Inverter
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- 29 -
- 30 -
The 1st priority power of the system is always the PV power,then 2nd and
3rd priority power will be the battery bank or grid according to the settings.
The last power backup will be the Generator if it is available.
Error code
Description
Solutions
F13
Working mode change
F18
AC over current fault
of hardware
F20
DC over current fault of
the hardware
F23
AC leakage current is
transient over current
F24
DC insulation impedance
failure
F26
The DC busbar is
unbalanced
F35
No AC grid
F41
AC Line W,U over voltage
F42
AC Line W,U low voltage
F47
AC Over frequency
Inverter work mode changed
1. wait for a mintue and check;
2. Seek help from us, if can't go back to normal state.
AC side over curent fault
1. Please check whether the backup load power and common
load power are within the range;
2. Restart and check whether it is in normal;
3. Seek help from us, if can not go back to normal state.
DC side over current fault
1. Check PV module connect and battery connect;
2. Turn off the DC switch and AC switch and then wait one
minute,then turn on the DC/AC swtich again;
3. Seek help from us, if can not go back to normal state.
Leakage current fault
1. Check the cable of PV module and inverter;
2. Restart inverter;
3. Seek help from us, if can not go back to normal state.
PV isolation resitance is too low
1. Check the connection of PV panels and inverter is firmly and
correctly;
2. Check whether the PE cable of inverter is connected to gound;
3. Seek help from us, if can not go back to normal state.
1. Please wait for a while and check whether it is normal;
2. If still same, and turn off the DC switch and AC switch and
wait for one minute and then turn on the DC/AC switch;
3. Seek help from us, if can not go back to normal state.
No Utility
1. Please confirm grid is lost or not;
2. Check the grid connection is good or not;
3. Check the switch between inverter and grid is on or not;
4. Seek help from us, if can not go back to normal state.
Grid voltage fault
1. Check the AC voltage is in the range of standard voltage in
specification;
2. Check whether grid AC cables are firmly and correctly
connected;
3. Seek help from us, if can not go back to normal state.
Grid voltage fault
1. Check the AC voltage is in the range of standard voltage in
specification;
2. Check whether grid AC cables are firmly and correctly
connected;
3. Seek help from us, if can not go back to normal state.
Grid frequency out of range
1. Check the frequency is in the range of specification or not;
2. Check whether AC cables are firmly and correctly connected;
3. Seek help from us, if can not go back to normal state.
