Loads are not
supplied
Overcurrent/Short circuit of
loads/ Overtemperature
protection
(Red LED flashing)
Switch off all loads. Remove
short circuit. Controller will
switch on load automatically
after max 1 minute.
Loads are not
supplied
Battery voltage too high
(>15.5 / 31.0 V)
Check if other sources
overcharge the battery. If
not, controller is damaged.
Battery cables or battery
fuse damaged, battery has
high resistance
Check battery wires, fuses
and battery.
Battery is empty
after a short time
Battery shows low capacity
(Red LED on)
Change battery
Battery is not
being charged
during the day
Solar array faulty or reverse
polarity
(Green LED off)
Remove faulty connection /
reverse polarity
20
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