How to Guide

12
LED Error Behavior
LED Indicators
Error
Code
Screen
RED BLUE RED ORANGE GREEN GREEN
ON OFF FLASH OFF OFF OFF ‘b01’ FLASH
ON OFF FLASH OFF OFF OFF ‘b02’ FLASH
ON OFF FLASH FLASH FLASH OFF ‘b03’ FLASH
OFF OFF FLASH FLASH FLASH OFF ‘b03’ FLASH
ON OFF FLASH FLASH FLASH OFF ‘b04’ FLASH
FLASH OFF OFF ‘PO1’ FLASH
FLASH OFF
OFF ‘PO2’ FLASH
‘otP’ FLASH
Battery good, solar
over-voltage
Battery good, solar
reversed
Solar good, battery
over 65°C
Solar off, battery
over-voltage
Solar good, battery
over-voltage
Solar good battery
reversed
Solar good, BV
< 3V
Over Temperature
LED Color
Protection
Description Troubleshoot
System Status Troubleshooting
Confirm that there is a tight and correct connection from the
battery bank to the charge controller and the solar panels to
the charge controller. Use a multi-meter to check if the
polarity of the solar modules have been reversed on the
charge controller’s solar terminals. Look for error codes
Use a multi-meter to check the voltage of the battery.
Make sure the battery voltage is not exceeding the rated
specification of the charge controller. Disconnect battery.
Charge controller does not
charge during daytime
when the sun is shining on
the solar panels.
Battery over voltage
According to BV