5. Troubleshooting
- 18 -
Fault Code/Symptom
Cause
Correction
Solar Charge controller is
not charging battery when
there is enough sunlight
1. Solar input is
disconnected
2. Solar input voltage is
lower than the battery
voltage
1. Check that all solar input
connections and
fuses/breakers are correct.
2. The voltage of the solar
panel should be more than
the battery voltage.
Nothing is displaying on the
LCD
Battery voltage is less than 8
Volts. Or incorrect
connections.
Check battery voltage,
connections, and fuses. The
controller will only turn on if
the battery is above 8 Volts.
(Ex1)
Battery is over discharged;
low voltage protection has
been triggered
The load output is turned
off automatically and will
recover when the battery
voltage rises above the Low
voltage recovery voltage.
(Ex2)
Battery is over charged.
Over voltage detected.
Check that the selected
battery profile is correct for
the battery connected.
(Ex3)
Overload detected
Reduce the load on the load
output of the solar charge
controller.
(Ex5)
Solar charge controller over
temperature.
Make sure the solar charge
controller has adequate
ventilation, and none of the
heat sink fins are blocked.
Allow the regulator to cool
down, once it has cooled
down it will restart charging
automatically.
(Ex6)
Input voltage of solar panels
is too high
Check voltage of the solar
input and reduce the
number of panels
connected in series.
