6
6. Troubleshooting
Faults
Troubleshooting
indicator off
during daytime
when sunshine
falls on PV
PV array
disconnected
Check that PV and battery wire
connections are correct and tight.
Green Battery
LED indicator
fast flashing
higher than over
voltage
disconnect
Check battery voltage. If too high,
disconnect the solar module
immediately and replace the
controller.
Battery LED
indicator orange
Battery under
voltage
Load output is normal. Charging LED
indicator will return to green
automatically when fully charged.
indicator RED
and loads not
Battery over
discharged
The controller did cut off the output
automatically. The LED indicator will
return to green when fully charged.
indicator red
and slow
Overload
Remove or cut out the additional load
and press the button. The controller
will restart after 3s.
indicator red
Short circuit
Clear short circuit and press the
button, the controller will resume to
and battery
indicator
(orange)
flashing
Over
temperature
When the heat sink of the controller
exceeds 85
, the controller will
automatically shut down. When the
temperature has decreased to less
than 75
, the controller will restart.
Charging, load
and battery
indicator (red)
flashing
simultaneously
System voltage
error
Check whether the battery voltage
matches with the controller working
voltage. Please change to a suitable
battery or reset the working voltage.
Press load button to clear the