How to Troubleshoot a Non-Functioning Solar Street Light?

If your solar street light stops working, do you know how to diagnose and fix the issue? Follow this step-by-step guide to identify and resolve the problem:

1.Check the Solar Panel Voltage

Use a multimeter to test the voltage output of the solar panel. If the reading falls within the expected range, the panel is functioning correctly. If the voltage is too low or absent, the panel may need cleaning or replacement.

2.Examine Solar Panel Wiring

Inspect all wiring connections from the solar panel for damage, corrosion, or loose contacts. Clean or replace any corroded or broken wires to ensure proper power transmission.

3.Test the Battery Voltage

For a 3.2V system, a healthy battery should read between 1.5V–3.6V, while a deeply discharged battery may show 1.5V–2.7V.For a 12V system, normal voltage ranges from 9V–14.5V, and a depleted battery may measure 6V–11V.

4.Inspect the Controller

Check the controller’s indicator lights. If they are off, constantly lit, or flashing abnormally, the controller may be defective and require replacement.

After installing a new controller, reconnect it to the solar panel. If the indicator lights turn on and the LED light turns off, the system is charging correctly, confirming the controller is working.

5.Test the LED Module

If the controller’s indicator is on but the light remains off—or if the indicator blinks without illumination—the LED module may be faulty. Check the wiring or replace the LED module if necessary.

Once the root cause is identified, take the appropriate steps to repair or replace the faulty component, restoring your solar street light to full functionality.