43
44
11.2
System fault
System fault (system faults are mainly caused by system instead of inverter, please check the
items as instructed below before replacing inverter).
11.3
Inverter warning
Warning code
Meanings
Suggestion
Warning 203
PV1 or PV2 Circuit short
1.Check the PV panel polarity.
2.Restart the inverter. If the warning
still exist, please contact Growatt
customer service to replace the
POWER board.
Warning204
Dryconnect function abnormal
1.
After shutdown,Check the dry
Dryconnect wiring.
2.
If the error message still exists,
contact manufacturer.
Warning 205
PV1 or PV2 boost broken
1.Restart the inverter. If the warning still
exist, please contact Growatt customer
service to replace the power board.
Warning207
USB over-current
1.Unplug the U disk or monitor. 2.Re-
access U disk or monitor after
shutdown.
3.If the error message still exists,
contact manufacturer.
Warning 401
Inverter communicates
with Meter abnormal
1.
Check if the meter is on.
2.
Check the inverter and the meter
connection is normal .
Warning404
EEPROM abnormal
1.Restart the inverter. If the warning
still exist, please contact Growatt
customer service to replace the M3
board.
Warning405
Firmware version is not
consistent
1.Uptate the right version firmware
AC F Outrange
Error: 304
Utility grid frequency out of
permissible range.
1.Please switch off DC switch.
2.Check AC wiring, especially
neutral and ground wire.
3 . C h e c k g r i d f r e q u e n c y i s
complied with local grid standard.
4.Restart inverter, if problem still
exist, Contact Growatt.
Auto Test Failed
Error: 407
Auto test didn't pass.
1.Restart inverter, repeat Auto Test,
if
problem
still
exist,
contact
Growatt.
Error message
Description
Suggestion
Error: 201
Leakage current too high
Restart the invert.
If error message still exists,
contact Growatt.
PV Voltage High
Error: 202
The DC input voltage is
exceeding the maximum
tolerable value.
. Disconnect the DC
switch immediately.
Check the voltage of each PV
string with multimerter.
If the voltage of PV string is
l o w e r t h a n 5 5 0 V, c o n t a c t
Growatt.
Error: 203
Insulation problem
Check if panel enclosure ground
properly.
Check if inverter ground properly.
Check if the DC breaker gets wet.
Check the impedance of PV (+) &
PV (-) between ground (must be
more than
25 KΩ or 550 KΩ(VDE
0126). If the error message is
displayed despite the above
checking passed, contact Growatt.
AC V Outrange
Error: 300
Utility grid voltage is out of
permissible range.
1.Please switch off DC switch.
2.Check AC wiring, especially
neutral and ground wire.
3.Check grid voltage is complied
with local grid standard. Restart
inverter, if problem still exist,
4.Contact Growatt.
No AC connection
Error: 302
No AC connection
Check AC wiring.
Check the status of AC breaker
Error: 303
Voltage of Neutral and PE
above 30V.
Check the voltage of Neutral
and PE.
Check AC wiring.
Restart inverter, if error message
still exisits,contact Manufacturer
