Growatt MID 30KTL3-X - Troubleshooting; Error message; System error

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38
Warning
message
Description
Suggest
Warning 207
USB overcurrent
protection
1Unplug the U disk;
2.Reconnect the U disk after shutdown;
3.If the fault message still exists,contact the
manufacturer.
Warning 208
DC fuse is broken
1.Check the fuse after shutdown;
2.If the fault message still exists,contact the
manufacturer.
Warning 209
Panel voltage is too
high
1.Disconnect the DC switch immediately and
confirm the voltage;
2.fter the normal voltage is restored, if the fault
message still exists,contact the manufacturer.
Warning 210
Panel reverse
1.Check the panel input;
2.If the fault message still exists,contact the
manufacturer.
Warning 300
No mains connection
1.Please confirm whether the power grid is lost;
2.If the fault message still exists,contact the
manufacturer.
Warning 301
Mains voltage is out of
range
1.Check whether the AC voltage is within the
specification range of the standard voltage;
2.If the fault message still exists,contact the
manufacturer.
Warning 302
Mains frequency is out
of range
1.Check whether the frequency is within the
range;
2.If the fault message still exists, contact the
manufacturer.
Warning 303
Output overload
1.Reduce output power;
2.If the fault message still exists, contact the
manufacturer.
Warning 304
Open current
transformer
1.Check whether the current transformer is
connected well;
2.If the fault message still exists, contact the
manufacturer.
Warning 305
Reverse connection of
current transformer
1.Check whether the current transformer is
connected reversely;
2.If the fault message still exists,contact the
manufacturer.
Warning 306
Communication failure
of current transformer
1.Please check the communication line;
2.If the fault information still exists,contact the
manufacturer.
Warning 307
Wireless CT pairing
timeout
1.Please check the communication line;
2.If the fault information still exists,contact the
manufacturer.
Warning 400
Fan function is
abnormal
1.Check the fan wiring after shutdown;
2.Replace the fan;
3.If the fault information still exists,contact the
manufacturer.
Warning
message
Description
Suggest
Warning 401
The meter is abnormal
1.Check whether the meter is turned on;
2.Check whether the connection between the
machine and the meter is normal.
Warning 402
Optimizer and inverter
communication
abnormal
1.Check if the optimizer is open;
2.Check whether the connection between the
optimizer and the inverter is normal.
Warning 403
String communication
abnormal
1.Check the string board wiring after shutdown;
2.If the fault message still exists,contact the
manufacturer.
Warning 404
Memory exception
1.Restart the inverter;
2.If the fault message still exists, contact the
manufacturer.
Warning 405
The firmware version
of the control board
and the
communication board
do not match
1.Check the firmware version;
2.If the fault message still exists, contact the
manufacturer.
Warning 406
Boost circuit failure
1.Restart the inverter;
2.If the fault message still exists,contact the
manufacturer.