38
User Manual V1.0-2022-08-20
09 Maintenance
No. Fault
Cause
Solutions
23
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.
24
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.
25
Internal Fan
abnormal
1. The fan power
supply is
abnormal.
2. Mechanical
exception.
3. The fan is aging
and 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.
26
Flash Fault
The internal
Flash storage 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.
27
DC Arc Fault
1. The DC terminal
is not firmly
connected.
2. The DC cable is
broken.
Read the Quick Installation Guide and check
whether the cables are connected properly.
28
AFCI Self-test
Fault
AFCI detection 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.
29
Cavity
Overtemperature
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. 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.
