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Battery over voltage
For best controller performance, it is recommended that these tasks be performed from time to
time.
1. Check wiring going into the charge controller and make sure there is no wire damage or wear.
2. Tighten all terminals and inspect any loose, broken, or burnt up connections
3. Make sure readings in the LCD and LED are consistent.
System Status Troubleshooting
Maintenance
Description Troubleshoot
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.
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 has been reversed on the charge
controller’s solar terminals.
Check the rated battery voltage. The LCD will not
display on the charge controller unless there is at
least 9V coming from the battery bank.
Charge controller does not
charge during daytime when
the sun is shining on the
solar panels.
Everything is connected
correctly, but the LCD on the
controller does not turn on
13
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