HYBRID INVERTER | Installer Manual
60
Error Code
Description
Solutions
F24
DC insulation impedance
failure
PV isolation resistance is too low
1.Check if the connection of PV panels and inverter are firmly
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.
F35
No at: grid
Grid voltage fault
1.Check if the voltage is in the range of standard voltage in
specification this can be adjusted via the grid set up page.
2.Check if grid cables are correctly connected.
F42
AC line low voltage
Grid voltage fault
1.Check if the voltage is in the range of standard voltage in
specification this can be adjusted via the grid set up page.
2.Check if grid cables are correctly connected.
F47
AC over frequency
Grid frequency out of range
1.Check if the frequency is in the range of specification
2.You may need to adjust the frequency on the grid set up
page.
F48
DC bus bar voltage is too low
Battery low voltage
1. Check if the battery voltage is too low.
2. If the battery voltage is too low use the PV or grid to
charge the battery.
3. Check the battery BMS
Important: Especially with Lithium batteries, ensure that the
batteries Max. discharge current or power specification is the
same or higher than the inverter specification.
F64
Heat sink high-temperature
failure
Heat Sink temp is too high
1.Check if the working environment temperature is too high.
2.Turn off the inverter for 30 minutes and restart.
Fault
Information
Instruction
Fault
Information
Instruction
F01
DC_Inversed_Failure
F33
AC_OverCurr_Fault
F02
DC_Insulation_Failure
F34
AC_Overload_Fault
F03
GFDI_Failure
F35
AC_NoUtility_Fault
F04
GFDI_Ground_Failure
F36
AC_GridPhaseSeque_Fault
F05
EEPROM_Read_Failure
F37
AC_Volt_Unbalance_Fault
F06
EEPROM_Write_Failure
F38
AC_Curr_Unbalance_Fault
F07
GFDI_Fuse_Failure
F39
INT_AC_OverCurr_Fault
F08
GFDI_Relay_Failure
F40
INT_DC_OverCurr_Fault
F09
IGBT_Failure
F41
AC_WU_OverVolt_Fault
F10
AuxPowerBoard_Failure
F42
AC_WU_UnderVolt_Fault
