31
32
Error Code
Fault Discription
Suggestion
Error 403
Output current
unbalance
1: After shutdown,Check the output current
is not balanced.
2: If the error message still exists, contact
manufacturer.
Error404
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 406
Init model fault
1. Reset mode.
2. If error message still exists,contact
manufacturer.
Error 407
AutoTest failure
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 410
Redundant sample
circuit of Insulation
values are different
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 412
Temperature sensor
connection is abnormal
1. After shutdown,Check the temperature
sampling module is connected properly.
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 414
EEPROM 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 Code
Fault Discription
Suggestion
Error 416
Over current protected
by software
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error417
Grid voltage sampling is
inconsistent
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 418
DSP and COM firmware
version unmatch
1. Check the firmware version.
2. If error message still exists,contact
manufacturer.
Error 419
Redundant sample
circuit of GFCI values
are different
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 421
CPLD is abnormal
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 422
sampling is inconsistent
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 423
Battery Reverse Protect
Fault
1. Restart inverter.
2. If error message still exists, contact
manufacturer.
Error 424
Communication board
and control panel
sampling battery
voltage is inconsistent
1. Restart inverter.
2. If error message still exists, contact
manufacturer.
Error 425
AFCI self-test fault
1. Restart inverter.
2. If error message still exists, contact
manufacturer.