Goodwe ETC Series User Manual page 51

User Manual V1.0-2023-05-20
No. Fault
21 EepromRWFault
22 SPIComFault
On-grid/off-grid switching module fault
No. Fault
1 HCTCheckFault
2 NoUtility
3 OverTempFault
Cause
Data memory
device exception.
1. Frame format
error
2. Parity checking
error
3. Can bus offline
4. Hardware CRC
error
5. Send (receive)
control bit is
receive (send).
6. Transmit to the
unit that is not
allowed.
Cause
The sampling
of the AC HCT is
abnormal.
1. Utility grid
exception.
2. The AC cable is
disconnected, or
the AC breaker is
disconnected.
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.
47
Solutions
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.
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.
Solutions
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. The alarm is automatically cleared after the
grid power supply is restored.
2. Check whether the AC cable is connected
and the AC breaker is on.
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.
09 Maintenance