System Fault Information List And Troubleshooting Suggestions - Growatt APX 5.0P-B1 User Manual

6.6 System fault information list and troubleshooting suggestions

PM (Power Module) Fault Code List
Error Code
FAULT 404(0)
FAULT 406(0)
FAULT 407(0)
FAULT 408(0)
FAULT 409(2)
FAULT 411(0)
FAULT 411(1)
FAULT 411(2)
FAULT 411(5)
FAULT 411(7)
FAULT 416(1)
FAULT 416(2)
35
Description
BM to PM
undervoltage
BM to PM
transient
overvoltage
BM to PM open-
circuited
Over-Temp
PM to INV
transient
overvoltage
Abnormal
communication
with INV
Abnormal serial
communication
with the master
control chip
Abnormal
communication
with BM
Abnormal
communication
with BM
Multiple Masters
parallel
communication
failure
Transient
overvoltage/
overcurrent
Transient
overcurrent
Suggested measures
Power off the machine and check the power cables,
then restart the machine. If the problem persists,
please contact Growatt support.
Power off the machine and check the power cables,
then restart the machine. If the problem persists,
please contact Growatt support.
Power off the machine and check the power cables
between BM and PM, then restart the machine. If the
problem persists, please contact Growatt support.
Power off the machine and wait for 30 minutes
before you restart the machine. If the problem
persists, please contact Growatt support.
Power off the machine and check the power cables,
then restart the machine. If the problem persists,
please contact Growatt support.
Power off the machine and check the
communication cables between PM and INV, then
restart the machine. If the problem persists, please
contact Growatt support.
Power off the machine and check the
communication cables between PM and PM, then
restart the machine. If the problem persists, please
contact Growatt support.
Power off the machine and check the
communication cables between BM and PM, then
restart the machine. If the problem persists, please
contact Growatt support.
Power off the machine and check the
communication cables between BM and PM, then
restart the machine. If the problem persists, please
contact Growatt support.
Power off the machine and check the
communication cables between BM and BM, then
restart the machine. If the problem persists, please
contact Growatt support.
Power off the machine and check the power cables,
then restart the machine. If the problem persists,
please contact Growatt support.
Power off the machine and check the power cables,
then restart the machine. If the problem persists,
please contact Growatt support.