9
·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.
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 LED1
indicator
SLOWLY
FLASHING
Battery
under
voltage
When load output is normal,
LED status will return to ON
automatically when fully
charged.
