String lights can really build the ambience of your home. They are not just pretty to look at but also provide good illumination!
But one common problem often seen with LED string lights is that parts of them may stop working out of the blue. That automatically begs the question - what is the best cause of part of an LED light string going out?
This is what I have sought to address in this article. So, let’s get into it!
How Do LED String Lights Work?
Before identifying the cause of LED light strings going out, it is first important to know how they function.
A string light consists of numerous small LED bulbs connected to the main power cord, either in a series or in parallel. Now, if you do not know how a series or parallel connection works, let me explain it to you in simple terms.
In a series connection, the current flows from the power source (which is the power plug) to every light bulb sequentially. Eventually, it flows back to the power source, thereby completing the circuit.
If one bulb goes out in the series, it will create an open circuit, causing the entire string light to go out. However, such a problem does not exist in a parallel connection.
In that case, each light bulb is connected to the power source independently of the others. So, if one of the bulbs goes out, the others will continue to work unless there is a problem with the power source itself.
Modern LED string lights utilize both of these connections, where multiple series of light bulbs are connected in parallel to the power source. That way, you get different segments in a string light, which work independently of each other.
What Is The Best Cause For Parts Of LED String Lights Going Out?
Now that you know how the LED string light functions, it is time to address the original question. The best cause as to why a part of an LED string light goes out is faulty series of lightbulbs.
As I have already stated before, most LED string lights today consist of several series of light bulbs connected in parallel. That is why you may observe several wires in your string light. Each wire is connected to the power plug and forms a series or a “part” of the whole string light.
Thus, if there is a fault in one of the bulbs connected to that wire, it will create an open circuit in that “part.” As a result, all of the lights connected to that wire will stop working.
Fixing The Part Of Your LED String Light That Has Gone Out
Now that you know the cause of why a part of the string light has suddenly gone out, you can get it fixed. On that note, here are a few methods you can use to fix them:
1. Find And Replace The Faulty Bulb
If it is a faulty bulb, you will need to find it first and then swap it with a new one. In some cases, the light bulb might just have come loose, which can be easily fixed by firmly pressing it down in its socket.
Regardless, you can use a multimeter tool or plug each bulb into a power outlet until the faulty one is found. However, if you cannot find the bulb, or if the bulbs are not replaceable, follow the next fix I have suggested.
2. Find And Remove Any Corrosion
Sometimes, corrosion at the bulb terminal can also cause a part of the light string to go out. In such a case, inspect each bulb terminal and look for any signs of corrosion. If you find it, then you can easily clean it with a brush and anti-corrosive agents. Once done, the string light should start functioning normally again.
Final Words
Now that you know why a part of your LED string lights might have suddenly stopped working, you can identify and fix them easily.
Given the nature of these lights, there can be other solutions to the ones I have suggested. One of them is to find and cut out the faulty portion of the string light. However, that is not a foolproof solution, and if not done correctly, you might damage the string light.
It’s also important to keep in mind that if none of the solutions help fix your string lights, you might have to invest in new ones.
That brings me to the end of this guide. Stay tuned for more informative articles like this in the future. Until then, goodbye!