High Voltage Transients
PV is protected against high voltage transients. In lightning prone areas,
additional external suppression is recommended.
5.2 Troubleshooting
Charging LED indicator off during
daytime when panels are in direct
sunlight
Check that PV and battery wire
connections are correct and tight.
Charging LED indicator is flashing
green
Battery voltage higher than over
voltage disconnect voltage (OVD)
Check if battery voltage over high.
Disconnect the solar module.
Battery LED indicator is orange
Load output is normal, charging
LED indicator will return to green
automatically when fully charged.
Battery LED indicator is red
The controller cuts off the output
automatically, LED indicator will
return to green automatically
when fully charged.
LED digital display shows letter
“P”
Check whether the PV
parameters match with the
controller’s; It will be reconnected
automatically when the voltage
falls safely below the maximum
rating.
LED digital display shows letter
“C”
Check whether the PV
parameters match with the
controller’s. Please refer to the
controller parameters for
photovoltaic parameters selection.
Battery indicator red flashing
Over load or short circuit
Overload: Please reduce the load
and press the button once, the
controller will resume working
after 3s.
Short circuit: when the first
short-circuit occurs, the controller
will automatically resume to work
after 10s; when a second short-
circuit occurs, press the button,
the controller will resume working
after 3s.
Table 5-1 Troubleshooting
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