Goodwe GW15K-ET - Page 68

64
09 Maintenance
User Manual V1.6-2024-03-20
No. Fault Cause Solutions
19
Anti Reverse
power Failure
Abnormal
uctuation of load
1. If the exception is caused by an external
fault, the inverter will recover automatically
after solving the problem.
2. If the problem occurs frequently and the
PV station cannot work properly, contact
the dealer or the after-sales service.
20
Internal Comm
Loss
1. Frame format
error
2. Parity checking
error
3. Can bus oine
4. Hardware CRC
error
5. Send (receive)
control bit is
receive (send).
6. Transmit to the
unit that is not
allowed.
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.
21
AC HCT Check
abnormal
The sampling
of the AC HCT is
abnormal.
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.
22
GFCI HCT Check
abnormal
The sampling of
the GFCI HCT is
abnormal.
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.
23
Relay Check
abnormal
1. The relay is
abnormal or
short-circuited.
2. The control
circuit is
abnormal.
3. The AC cable
connection
is abnormal,
like a virtual
connection or
short circuit.
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.