43
User Manual V1.1-2022-07-20 09 Maintenance
No. Fault Cause Solutions
12 DCi High
The machine
detects that the
DC component of
the internal output
current exceeds the
normal range.
Please contact your dealer or after-sale service.
13 ISO Fail
1. The PV system is
short-circuited
to the ground.
2. The PV system
is in a moist
environment
and the circuit
is not well
insulated to the
ground.
1. Check whether the PV input cables are broken.
2. Check whether the module frames and the
metal bracket are securely grounded.
3. Check whether the AC side is properly
grounded
Inverters sold in Australia and New Zealand will also
alarm as following when Isolation Fail occurs.
1. The buzzer in the inverter will sound for 1minute. If
the problem persists, the buzzer willsound every 30
min.
2. After adding the inverter to SEMS Portal, the alarm
information will be emailed to the customers via
SEMS Portal.
14 Vac Failure
The utility grid
voltage is out of the
allowed range.
1. Make sure that the grid voltage is within the
allowed range.
2. Make sure that the phase sequence of the AC
cables are connected correctly, and the neutral
wire and PE cable are connected properly and
rmly.
15 ExFan Failure
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.
16 GFCI Chk Fail
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.
17 AFCI Fault
1. The DC string
terminal is
not rmly
connected.
2. The DC cable is
broken.
Please check whether the wirings of the
PV modules are correct according to the
requirements in the user manual.
To Next Page
Loading...
Need help?
General
