User Manual

9
TROUBLESHOOTING
Faults Possible reasons Troubleshooting
The LCD is off during PV array disconnection Confirm that PV wire connections are correct
daytime when sunshine and tight
falls on PV modules
properly
Wire connection is correct, 1) Battery voltage is 1) Please check the voltage of battery.
LCD not display lower than 9V At least 9V voltage to activate the controller
2) PV voltage is less than 2) Check the PV input voltage which should
battery voltage be higher than battery’s
Interface Battery over voltage Check if the battery voltage is higher than
blink OVD point (over voltage disconnect voltage),
and disconnect the PV
Interface Battery over discharged When the battery voltage is restored to
blink or above LVR point (low voltage reconnect
voltage), the load will recover
Interface Battery Overheating The controller will automatically turn the
blink system off. But while the temperature
decline to be below 50ºC, the controller
will resume
Interface Over load or Short circuit Please reduce the number of electric
blink equipment or check carefully load
connection