Solar energy is an important energy source around us. Through solar energy, we invented solar water heaters and solar street lights. However, during the use of solar street lights, it is inevitable that there will be some faults that affect our use, such as solar street lights do not light up. What we can do at this time is to find the cause of the fault and repair it as soon as possible, so as not to affect our use. So what is the reason why the solar street light does not light up? Next, We will introduce to you.
1. The line is loose or disconnected
The solar street light will not light up or flicker when it is normally connected to electricity. It is likely that the wiring is loose or disconnected, we can reconnect the wires or replace the wires.
2. the battery can"t work normally, the voltage is too low
Please confirm whether the positive and negative poles of the battery are connected reversely, and test whether the battery is broken. Use your own power supply to charge the battery. After the 12V battery is fully charged, the test voltage should be around 13.8V. Then connect the battery directly to the load (not to connect to the controller at this time). Use a multimeter to test the voltage and see the voltage change. If the voltage decreases slowly, it means that the battery is normal. If the voltage decreases quickly in a short time, it means that the battery is broken. The solar street light system cannot work normally. The LED light is not on, the time is not enough, the brightness is not enough, and it is always on. not bright. Therefore, it is necessary to reconnect the battery, replace the battery, replace the battery terminal, repair the battery or directly replace the battery.
3. the positive and negative poles of the solar panel are reversed
The solar street light system will only turn on once after installation, and the solar street light will never turn on again when the battery is used up.
4. the solar panel is damaged
The solar panel is not connected to any load in the sun, and do not connect to the controller. Pull out the wire of the solar panel directly and connect it to a multimeter to test its voltage. Because the system is a 12V system, the voltage of the solar panel will definitely be displayed under normal conditions. Above 12V, the domestic panels of this system generally use solar panels with a working voltage of 18V, so its open circuit voltage will be above 18V.
5. the LED light source is damaged
This is a relatively common reason. The LED light source is damaged due to natural or man-made reasons, which causes the LED street light system to fail to work, turn on and off, flicker and so on. You can first check whether the LED lamp beads have black spots. If there are black spots, you need to replace the LED light source.
6. the constant current source is damaged
The system restarts the bulb to work normally, it has been ruled out that the solar street light system cannot work, and the solar street light will not turn on or flicker.
7. controller setting error
There is no button on the controller panel, you need to add a handheld terminal or use a data cable to connect to the computer and use the software to reset. Please help the supplier to help the solar street light system not work properly. The solar street light does not turn on when it is on, and the lighting time is not enough. Or keep it on. We need to reset the controller and directly replace the controller.
8. Controller program error
There is no button on the controller panel, and it needs to be reset with a hand-held terminal or connected to a computer with a data cable. Please help from the supplier.
The above reasons why the solar street light does not turn on are shared with you. In short, for the problem of the solar street light not turning on, we must comprehensively consider and check step by step. For the problems found, the repairs to be repaired, and for the key components Replace the ones that need to be replaced, so as to ensure the brightness of the solar street lights.