SINGLE PHASE HI 10/12kW | User Manual72
Error Code Description Solutions
F20
DC over current fault of the
hardware
DC side over current fault
1. Check PV module connect and battery connect;
2. When in the o-grid mode, the inverter startup with a big
power load, and it may report F20. Please reduce the load
power connected.;
3. Turn o the DC and AC switches, wait one minute, and
then turn on the DC/AC switch again.
4. Seek help from us if you can not return to a normal state.
F23
AC leakage current is trans
over current
Leakage current fault
1.Check the PV module and inverter cables.
2.You may have a faulty PV panel (earth short)
3.Restart inverter
F24
DC insulation impedance
failure
PV isolation resistance is too low
1.Check if the connection of PV panels and inverter are rmly
connected.
2.Check if the earth bond cable on inverters is connected to
the ground.
F26 The bus bar is unbalanced
1.Please wait 5 minutes to see if it returns to normal.
2. Fully reset the inverter.
F29 Parallel CANbus fault
1. When in parallel mode, check the parallel communication
cable connection and hybrid communication address set-
tings.
2. During the parallel system startup period, inverters will re-
port F29. When all inverters are in ON status, it will disappear
automatically;
3. If the fault exists, please contact us for help.
F34 AC Overcurrent fault
1. Check the backup load connected, make sure it is in al-
lowed power range;
2. If the fault still exists, please contact up for help.
F35 No AC grid
No utility
1.Please conrm grid is lost or not;
2. Check the grid connection;
3. Check the switch between inverter and grid in on or not;
2. If the fault still exists, please contact up for help.
F41 Parallel system stop
1. Check the hybrid inverter working status. If there's 1pcs
hybrid inverter is in OFF status, the other hybrid inverters
may report F41 fault in parallel system.
2. If the fault exists, please contact us for help.
F42 AC line low voltage
Grid voltage fault
1.Check if the voltage is in the range of standard voltage in
specication this can be adjusted via the grid set up page.
2.Check if grid cables are correctly connected.
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