Growatt MID TL3-XH Series - Page 52

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Error code
Description
Troubleshooting
Error 423
AC PWM Bypass
Protection
1.Restart the inverter.
2.If the error message persists, please contact
Growatt support.
Error 424
INV current
abnormal
1.Restart the inverter.
2.If the error message persists, please contact
Growatt support.
Error 425
AFCI self-test fault
1.Restart the inverter
2.If the error message persists, please contact
Growatt support.
Error 426
PV current sampling
abnormal
1.Restart the inverter
2.If the error message persists, please contact
Growatt support.
Error 427
AC current
sampling abnormal
1.Restart the inverter
2.If the error message persists, please contact
Growatt support.
Error 428
BOOST converter
short-circuited
Contact Growatt support.
Error 429
BUS soft-start failed
1.Restart the inverter
2.If the error message persists, please contact
Growatt support.
Error 431
Monitoring chip
BOOT verification
failed
Contact Growatt support.
Error 432
The system battery
model is not
compatible
1.Replacing the system battery model.
2.If the error message persists, please contact
Growatt support.
Error 433
The system battery
software is not
compatible
1.Update the system battery software
2.If the error message persists, please contact
Growatt support.
Error 500
BMS
Communication
fault
1.Check the RS485 cable between the inverter and
the battery.
2.Check if the battery is in sleep mode.
3.If the error message persists, please contact
Growatt support.
Error 501
BMS failure and
neither charge nor
discharge is allowed
1.Determine the cause based on the BMS error code.
2.If the error message persists, please contact
Growatt support.
Error 502
Battery voltage low
1.Check the battery voltage
2.If the error message persists, please contact
Growatt support.
Error code
Description
Troubleshooting
Error 503
Battery voltage
high
1.Check whether the battery voltage exceeds the
permissible range; if so, replace the battery; if not,
restart the inverter.
2.If the error message persists, please contact Growatt
support.
Error 504
Battery
temperature is out
of the specified
range for charging
or discharging
1.Check battery temperature.
2.If the error message persists, please contact Growatt
support.
Error 505
Battery terminals
reversed
1.Check the connection of the battery terminals.
2.If the error message persists, please contact Growatt
support.
Error 506
Battery open-
circuited (lithium
battery only)
1.Check the connection of the battery.
2.If the error message persists, please contact Growatt
support.
Error 507
Lithium battery
Overload
1.Check whether the output load is greater than the
battery's rated power; if so, please reduce the load.
2.If the error message persists, please contact Growatt
support.
Error 508
BUS2 Volt
Abnormal
1.Restart the inverter.
2.If the error message persists, please contact Growatt
support.
Error 509
Bat Charge OCP
1.Check whether the PV voltage is overconfigured.
2.If the error message persists, please contact Growatt
support.
Error 510
Bat Discharge OCP
1.Check whether the battery discharge current is
properly set.
2.If the error message persists, please contact Growatt
support.
Error 511
BAT soft-start
failed
1.Restart the inverter.
2.If the error message persists, please contact Growatt
support.
Error 600
EPS output short-
circuited
1.Restart the inverter.
2.If the error message persists, please contact Growatt
support.
Error 601
BUS Volt Low
1.Check whether the battery works properly.
2.If the error message persists, please contact Growatt
support.
Error 602
AC port volt
Abnormal
1.Check whether the voltage exists at the AC output
port.
2.If the error message persists, please contact Growatt
support.
Error 603
Soft start failed
1.Restart the inverter.
2.If the error message persists, please contact Growatt
support.