chg over cur 28 (1)Check if battery wiring port is short circuited .
(2)Check if charging current is in compliance with presetting.
(3)Contact customer service if error warning continues.
bus soft fail
inv soft fail
bus short
inv short
fan fault
Bus Relay Fault
Grid Rly Fault
EPS rly fault
gfci fault Load
Ct fault Off
grid RlyFal
system fault
32
33
34
35
36
38
39
40
41
42
44
45
(1)Restart the inverter and wait until it functions normally.
(2)Contact customer service if error warning continues.
pviso low 37
(1)Check if the PE line is connected to the inverter
and is connected to the ground.
(2)Contact customer service if error warning continues.
pv short 43 (1)Restart the inverter and wait until it functions normally.
(2)Disconnect the PV input, restart the inverter and
wait until it functions normally.
(3)Contact customer service if error warning continues.
bat reverse 46
(1)Check if the inverter battery positive and
negative connection is correct.
(2)Contact customer service if error warning continues.
70
Fault diagnosis and solutions
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