Goodwe ETC Series User Manual page 49

User Manual V1.0-2023-04-30
No. Fault
8 GFCIFault
9 BusHighFault
10 IntFanLockFault
11 OverTempFault
12 PhaseOrderFault
13 NLineFault
Cause
The input
insulation
impedance
becomes low
when the inverter
is working.
1. The PV voltage
is too high.
2. The sampling
of the inverter
BUS voltage is
abnormal.
1. The power
supply to
internal fan is
abnormal.
2. Mechanical
failure
3. Aged or
damaged fans
1. The inverter is
installed in a
place with poor
ventilation.
2. The ambient
temperature is
too high.
3. A fault occurs
in the internal
fan of the
inverter.
The cables are
connected in a
wrong phase.
The N wire is not
connected.
45
Solutions
1. If the problem occurs occasionally, it
may be caused by a cable exception.
The inverter will recover automatically
after the problem is solved.
2. Check whether the resistance between
the PV string and PE is too low if the
problem occurs frequently or persists.
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 whether the fan is blocked.
2. 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 proper.
Disconnect the AC output switch and DC
input switch and wait for 5 minutes. Then
connect the phase cables in the right way.
Check whether the N wires on Grid side
and Load side are well connected.
09 Maintenance