编号：
GR-UM-C -00
51
/
57
Warning 207
U disk over-current
protection
1: unplug the U disk
2: Re-access U disk after shutdown
3.If the error message still exists, contact manufacturer.
Warning 400
Fan function abnormal
1.After shutdown,Check the fan connection.
2. replace the fan.
3. If the error message still exists, contact manufacturer.
Warning 401
Meter abnormal
1: Check if the meter is on
2: Check the machine and the meter connection is normal
Warning 402
Optimizer and inverter
communication is
abnormal
1. Check if the optimizer is on.
2. Check whether the connection between the optimizer and
the inverter is normal.
Warning 404
EEPROM abnormal.
1.Restart inverter.
2.If error message still exists,contact manufacturer.
Warning 405
DSP and COM firmware
version unmatch
1.Check the firmware version.
2.If error message still exists,contact manufacturer.
Warning408
NTCBroken
1.Restart inverter
2.If error message still exists, contact manufacturer.
If the above suggestions do not work, please contact Growatt.
9.2.2 Error
Errors codes identify a possible equipment failure, fault or incorrect inverter setting or configuration, any or all attempts to
correct or clear a fault must be performed by qualified personnel.
Typically, the error code can be cleared once the cause or fault is removed.
Some of error code as table shows below, may indicate a fatal error and require you to contact the supplier or Growatt for
help.
Error
Code
Description
Suggestion
Error 200
AFCI Fault
1.After shutdown,Check the panel terminal.
2.Restart inverter.
3.If error message still exists,contact manufacturer.
Error 201
Leakage current too high.
1.Restart inverter.
2.If error message still exists,contact manufacturer.
Error 202
The DC input voltage is
exceeding the maximum
tolerable value.
1.Immediately disconnect the DC switch and check the
voltage
2:.If the fault code still exists after the normal voltage is
restored, contact manufacturer
Error 203
PV Isolation Low
1.After shutdown,Check if panel enclosure ground
properly.
2.If error message still exists,contact manufacturer.
Error 300
AC V Outrange
1.Check grid voltage.
2.If the error message still exists despite the grid voltage
being within the tolerable range, contact
