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Troubleshooting
FAULT / FAULT INDICATOR POSSIBLE CAUSE TROUBLESHOOTING
PV array
disconnection
Battery voltage is
lower than 8V
A battery cell is
defect
Battery over
discharged
Battery Overheating
Controller overheat.
At 85°C, charge is
cut off. Resumed
again below 75°C.
Wrong system
voltage chosen (12V
instead of 24V)
Load Overload
Load Short Circuit
Confirm that PV wire connections are
correct and tight
Please check the voltage of battery. At
least 8V voltage to activate the
controller.
A faulty battery might cause voltages
reaching OVD(over voltage disconnect
voltage), Check OVD settings and
battery health.
Turn off consumers and recharge. If this
happens repeatedly battery health
should be considered.
Check for overheat source. When temp
declines below 55 ºC, warning is reset.
Check ventilation according to chapter
installation
B Check controller working voltage
settings.
C Please manually set the correct
voltage.
B Please reduce the number of electric
C Restart the controller.
D Wait for one night-day cycle (night
time>3 hours).
B Check carefully loads connection,
clear the fault.
C Restart the controller.
D Wait for one night-day cycle (night
time>3 hours).
No charge / night indication, in
spite of high energy light
completely covers the solar panels
Battery level shows
full, battery frame
blink, fault icon blink
Battery level shows
empty, battery frame
blink, fault icon blink
Battery frame blink,
fault icon blink
PV/BATT / Battery capacity lever
indicator fast flashing
Load and fault icon blink
Controller shut down
1. The load has no output
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