Goodwe UT Series - Page 48

44
09 Maintenance
For Re-
view
User Manual V1.0-2023-03-20
No. Fault Cause Solutions
5
Night DCSPS
Fautl
1. Temporary
abnormality caused by
environmental factors.
2. Internal components
of the inverter are
damaged.
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.
6 Relay Fail
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.
7
BUS-start
Fail
1. The output power of
the PV string is too
low.
2. The control circuit is
abnormal.
8
PV Reverse
Fault
The PV string is
connected reversely.
Check whether the PV strings are connected
reversely.
9
Night BUS
Fault
1. Utility grid power fails.
2. The AC cable is
disconnected, or the
AC breaker is o.
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.
10 CPLD Error
1. Temporary
abnormality caused by
environmental factors.
2. Internal components
of the inverter are
damaged.
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.
11 DCI High
The equipment detects
that the DC component
of the internal output
current exceeds the
normal range.
Contact your dealer or after-sales service.