19
·
Overheating Protection
If the temperature of the controller heat sink exceeds 85
C, the controller will
automatically start the overheating protection.
·
High Voltage Transients
PV
is protected against high voltage transients. In lightning prone areas, additional
external suppression is recommended.
5.2 Troubleshooting
Trouble Shooting Table 5-1
Faults
Possible
reasons
Troubleshooting
Charging LED indicator off
during daytime when
sunshine falls on PV
modules properly.
PV
array
disconnection
Check that PV and battery
wire connections are correct
and tight.
Green
charging
LED
indicator fast flashing
Battery
voltage higher
than
over
voltage
disconnect
voltage(OVD)
Check if battery voltage over
high. Disconnect the solar
module
Battery
LED indicators are
orange
Battery under
voltage
Load output is normal,,
charging LED indicator will
return to green automatically
when fully charged.
Battery
LED
indicators
RED color and loads not
working.
Battery
over
discharged
The controller cut off the
output automatically, LED
indicator will return to green
automatically when fully
charged.