Goodwe ET Series User Manual page 62

09 Maintenance
No. Fault
27 DC Arc Fault
AFCI Self-test
28
Fault
Cavity
29
Overtemperature
30 BUS Overvoltage
PV Input
31
Overvoltage
PV Continuous
32 Hardware
Overcurrent
Cause
1. The DC terminal
is not firmly
connected.
2. The DC cable is
broken.
AFCI detection is
abnormal.
1. The inverter is
installed in a
place with poor
ventilation.
2. The ambient
temperature
exceeds 60℃.
3. A fault occurs in
the internal fan
of the inverter.
1. The PV voltage is
too high.
2. The sampling
of the inverter
BUS voltage is
abnormal.
The PV array
configuration is
not correct. Too
many PV panels are
connected in series
in the PV string.
1. The PV
configuration is
not proper.
2. The hardware is
damaged.
58
User Manual V1.1-2022-12-20
Solutions
Read the Quick Installation Guide and check
whether the cables are connected properly.
Disconnect the AC output switch and DC
input switch, then connect them 5 minutes
later. Contact the dealer or the after-sales
service if the problem persists.
1. Check the ventilation and the ambient
temperature at the installation point.
2. If the ventilation is poor or the ambient
temperature is too high, improve the
ventilation and heat dissipation.
3. Contact the dealer or after-sales service
if both the ventilation and the ambient
temperature are normal.
Disconnect the AC output switch and DC
input switch, then connect them 5 minutes
later. Contact the dealer or the after-sales
service if the problem persists.
Check the serial connection of the PV array.
Make sure that the open circuit voltage of the
PV string is not higher than the maximum
operating voltage of the inverter.
Disconnect the AC output switch and DC
input switch, then connect them 5 minutes
later. Contact the dealer or the after-sales
service if the problem persists.