Instruction manual

20
5.2 Troubleshooting
Trouble Shooting Table 5-1
Faults
Possible reasons
Troubleshooting
Charging LED
indicator off during
daytime when
sunshine falls on PV
modules properly.
PV
array disconnection
Check that PV and battery wire
connections are correct and tight.
Green charging
LED indicator
flashing
Battery voltage
higher than over
voltage disconnect
voltage(OVD)
Check if battery voltage over
high. Disconnect the solar
module
Battery LED
indicator are orange
Battery under
voltage
Load output is normal,, charging
LED indicator will return to
green automatically when fully
charged.
Battery LED
indicator RED color
Battery
over discharged
The controller cut off the output
automatically, LED indicator
will return to green
automatically when fully
charged.
LED digital tube
displays ―P‖
PV Overvoltage
Check whether the PV
parameters match with the
controller’s; It will be
reconnected automatically until
the voltage falls safely below the
maximum rating.
Battery Indicator
red flashing
Over load or short
circuit
Overload: Please reduce the load
and press the button once, the
controller will resume to work
after 3s;
Short circuit: when the first
short-circuit occurs, the
controller will automatically
resume to work after 10s; when a
second short-circuit occurs, press
the button, the controller will
resume to work after 3s.