73
Fault Name Fault Cause Fault Level Corrective Method
Machine code
repetition fault
The addresses of the inver-
ter units inside the inverter
are the same.
Important
Please contact
SUNGROW.
Temperature and
humidity board
communication
abnormal
The communication of the
temperature and humidity
board is abnormal.
Secondary
Please contact
SUNGROW.
Branch reverse
over-current
The branch reverse current
is excessively large.
Secondary
Please contact
SUNGROW.
DSP communica-
tion exception
The communication be-
tween inverter internal con-
trol board and smart unit
board is abnormal.
Secondary
Please contact
SUNGROW.
System Manual 10 Troubleshooting