Growatt MID TL3-XH Series - Page 43

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Warning
message
Description
Troubleshooting
Warning 207
U disk over-current
protection
1.Unplug the U disk.
2.Reconnect the U disk after shutdown.
3.If the error message persists, please contact
Growatt support.
Warning 208
DC fuse blows
1.After shutdown, check the fuse.
2.If the error message persists, please contact
Growatt support.
Warning 209
The DC input voltage
exceeds the upper
threshold
1.Immediately disconnect the DC switch and
check the voltage.
2.If the fault code persists after the voltage
restores to the acceptable magnitude, please
contact Growatt support.
Warning 210
PV terminal reversed
1.Check the polarity of the PV input terminals.
2.If the error message persists, please contact
Growatt support.
Warning 217
BDC abnormal
1.Restart the inverter.
2.If the error message persists, please contact
Growatt support.
Warning 218
BDC Bus disconnected
1.Restart the inverter.
2.If the error message persists, please contact
Growatt support.
Warning 219
PID function abnormal
1.Restart the inverter.
2.If the error message persists, please contact
Growatt support.
Warning 220
String disconnected
1.Check if the strings are securely connected.
2.If the error message persists, please contact
Growatt support.
Warning 221
String current
unbalanced
1.Check if the PV panel is working properly.
2.If the error message persists, please contact
Growatt support.
Warning 300
No AC connection
1.Check if a power outage occurs.
2.If the error message persists, please contact
Growatt support.
Warning 301
Grid voltage outrange
1.Check if the grid voltage is within the specified
range.
2.If the error message persists, please contact
Growatt support.
Warning 302
Grid frequency
outrange
1.Check if the grid frequency is within the
specified range.
2.If the error message persists, please contact
Growatt support.
Warning 303
EPS mode, overload
1.Please reduce the load of EPS output.
2.If the error message persists, please contact
Growatt support.
Warning
message
Description
Troubleshooting
Warning 304
CT is open or
incorrectly wired
1.Check if the AC current sensor is connected
properly.
2.If the error message persists, please contact
Growatt support.
Warning 305
CT line reversed or
Ground fault
1.Check if the L line and N line of the CT are
reversely connected.
2.If the error message persists, please contact
Growatt support.
Warning 306
CT COM fault
1.Check the connection of the communication
cable.
2.If the error message persists, please contact
Growatt support.
Warning 307
Communication fault
1.Check the connection of the communication
cable.
2.If the error message persists, please contact
Growatt support.
Warning 308
Meter is open or
incorrectly wired
1.Check if the Meter is connected properly.
2.If the error message persists, please contact
Growatt support.
Warning 309
Meter line reversed or
Ground fail
1.Check the L line and N line of the Meter is
reversed or not.
2.If the error message persists, please contact
Growatt support.
Warning 310
NE abnormal
1.Check the PE cable to ensure that it is securely
connected.
2.If error message still exists, contact
Manufacturer.
Warning 311
Sequence Error
No operation is required, the PCS will
automatically adjust the phase sequence.
Warning 400
Fan function abnormal
1.After shutdown,check the connection of the
fan.
2.Replace the fan.
3.If the error message persists, please contact
Growatt support.
Warning 401
Meter abnormal
1.Check if the meter is on.
2.Check if the meter is correctly connected to
the inverter.
Warning 402
Communication
between the optimizer
and the inverter is
abnormal
1.Check if the optimizer is on.
2.Check whether the connection between the
optimizer and the inverter is normal.
Warning 403
String communication
abnormal
1.After shutdown,check the string panel wiring.
2.If the error message still exists, contact the
manufacturer.