AC V Outrange
AC F Outrange
BMS COM Fault
Battery reversed
BAT NTC Open
Battery Open
Over load
No AC Connection
Output High DCI
Grid voltage fault.
Please refer to the local grid
standard for more details of
the grid frequency.
Grid frequency fault.
Please refer to the local grid
standard for more details for
the grid voltage.
Communication fault
Battery terminals reversed
NTC open
(only for lead-acid battery)
Battery terminal open
(only for lithium battery)
EPS output overload warning.
If this warning occurred three
time. Off-grid function will be
locked one hour and output
power again.
No Utility
Output DC current too high.
Please refer to the local grid
standard for disconnection
time when the output DC
current is too high.
1.Check the AC voltage is in the
range of standard voltage in
specification.
2.Check the grid connection is
good or not.
1.Check the frequency is in the
range of specification or not.
2.Restart inverter.
3.Please contact Growatt service
center if restart can't solve the
problem.
1.Check the lithium Battery is
open or not.
2.Check the connection of lithium
Battery and inverter is good or
not.
Check the positive and negative
of battery is reversed or not.
1.Check the temperature of lead-
acid battery is installed or not.
2.Check the temperature of lead-
acid battery is connected well or
not.
1.Check the battery connection is
good or not.
2.Check the switches between
the battery and inverter are all on
or not.
Please reduce the load of EPS
output.
1.Please confirm grid is lost or
not.
2.Check the grid connection is
good or not.
3.Check the switches on the cable
are on or not.
1.Restart inverter.
2.Please contact Growatt service
center if restart can't solve the
problem.
49
50
Bat Voltage High
Bat Voltage Low
BMS Warning:XXX
BMS error:XXX
EPS Volt Low
Battery Voltage higher than
560V
Battery Voltage Lower
than150 V
BMS report warning
BMS report error
EPS output voltage low
1.Check the voltage of battery is in
the range of specification or not.
2.Check the battery connection is
right or not If battery is really
higher than 560V. Please
disconnect the connection of
battery and check inverter.
1.Check the real voltage of battery.
2.Check the wire of battery and
inverter is good or not.
1.Check the warning information
from lithium battery user manual.
2.Please contact Growatt service
center if restart can't solve the
problem.
1.Check the warning information
from lithium battery user manual.
2.Please contact Growatt service
center if restart can't solve the
problem.
1.Check the load of EPS. If
overload occurred, reduce load.
2.Restart inverter again.
Error message
Error message
Error 411
Error 418
Error 303
Error 405
Description
Internal communication failed
DSP and COM firmware version
unmatch, system fault.
Inverter L N reversed or ground
failed
Relay fault
1.Restart inverter.
2.Please contact Growatt service
center if restart can't solve the
problem.
1.Read DSP and COM firmware
version from LCD or shinebus.
2.Check if the firmware is correct.
1.Restart inverter.
2.Please contact Growatt service
center if restart can't solve the
problem.
1.Check the connection of PV
panels and inverter is good or not.
2.Check the PE of inverter is good
or not.
Suggestion
