Instruction manual

15
discharging at the default temperature 25℃ to prevent the battery damaged from
overcharging or over discharged.
·Over Temperature Protection
If the temperature of the controller heat sinks exceeds 85℃, the controller will
automatically start the overheating protection and recover below 75℃.
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
Confirm that PV and battery wire
connections are correct and tight.
Battery LED indicator
green fast blink
Battery voltage
higher than over
voltage disconnect
voltage(OVD)
Check if battery voltage too high,
and disconnect the solar module.
Battery LED indicator is
orange
Battery under
voltage
Load output is normal, charging
LED indicator will return to
green automatically when fully
charged.
Battery LED indicator
red color
Battery low voltage
disconnect
The controller cut off the output
automatically, LED indicator
will return to green automatically
when fully charged.
All the LED indicators
blink.
(battery orange indicator
blink)
Too high
temperature of
controller
When heat sink of the controller
exceeds 85℃, the controller will
automatically cut input and
output circuit. When the
temperature below 75℃, the
controller will resume to work.
All the LED indicators
blink.
(battery red indicator
blink)
System voltage
error
Check whether the battery
voltage match with the controller
working voltage. Please change
to a suitable battery or reset the
working voltage. Remove all
faults and click the button to
resume to work.
No output load terminals
Over load or Short
circuit
Remove or reducing the load and
click the button, the controller
will resume to work after 3
seconds.