Growatt MAC 30-36KTL3-XL - Error Code Analysis; Error Code List

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
Error 302
No AC Connection
1.After shutdown,Check AC wiring.
2.If error message still exists,contact
manufacturer
Error 303
PE abnormal
1.Check PE,to ensure that the PE line contact
good.
2.If error message still exisits,contact
Manufacturer
Error 304
AC F Outrange
1.Restart inverter.
2.If error message still exists,contact
manufacturer.
9.2.2 Error
Error 402
Output DC
current too high
1.Restart inverter.
2.If error message still exists,contact manufacturer.
Error 403
Output current
unbalance
1.After shutdown,Check the output current is not
balanced.
2.If the error message still exists, contact
manufacturer
Error 404
bus sample fault
1.Restart inverter.
2.If error message still exists,contact manufacturer.
Error 405
Relay fault
1.Restart inverter.
2.If error message still exists,contact manufacturer
Error 408
NTC Temperature
too high
1.After shutdown,Check the temperature, normal
restart the inverter
2.If the error message still exists, contact
manufacturer
Error 409
Bus voltage
abnormal
1.Restart inverter.
2.If error message still exists,contact manufacturer.
Error 411
Communication
fault
1.After shutdown,Check communication board
wiring
2. If the error message still exists, contact
manufacturer
Error 413
IGBT drive fault
1.Restart inverter.
2.If error message still exists,contact manufacturer
Error 415
Internal power
test fail（PV
Power low）
1.Restart inverter.
2.If error message still exists,contact manufacturer
Error 416
Over current
protected by
software
1.Restart inverter.
2.If error message still exists,contact manufacturer.
Error 420
GFCI Module
damage
1.After shutdown,Check the leakage current
module
2 .If the error message still exists, contact
manufacturer
Error 422
sampling is
inconsistent
1.Restart inverter.
2.If error message still exists,contact manufacturer
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