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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
fast
flashing
Battery voltage
higher than over
voltage
disconnect
voltage(OVD)
Check if battery voltage
over high. Disconnect the
solar module
Battery
LED indicators are
orange
Battery
under
voltage
Load output is normal,,
charging LED indicator
will
return
to
green
automatically when fully
charged.
Battery
LED
indicators RED color
and
loads
not
working.
Battery
over discharged
The controller cut off the
output automatically, LED
indicator will return to
green automatically when
fully charged.