How to Repair Led Light Driver

If you have a led light that is not working, you should first check the light driver. The light driver is what converts the AC from the wall to the DC that powers the LEDs. If your light driver is damaged, you can try to repair it.

How to Repair Led Light Driver

This blog post will show you how to repair led light driver. Keep in mind that this procedure should only be used as a last resort, as there are risks involved in repairing electronic components. Proceed at your own risk! So keep reading this blog post to learn more!

Summary: If your LED light driver is not working, there are a few things you can do to try and fix it. You can try resetting the driver by unplugging it and plugging it back in, or you can try replacing the driver.

What is an LED Driver

An LED driver is a device that regulates voltage and provides electrical current to an LED, acting as a “middleman” between the LED and a power source. By keeping both components within a safe operating range, the LED driver ensures that your LEDs are properly powered without damaging them.

If you use a regular AC current to power LED lights, it will damage the lights. AC current also makes it difficult to use multiple colors, so you would have to use different drivers for each color. This would be expensive and inconvenient.

How Does an Led Driver Work

An led driver (or led power supply) is an electronic device for driving semiconductor light sources. The most common light sources are LEDs and CCFLs, so the devices are often described as LED drivers or CCFL drivers. The driver converts line voltage (typically between 90 and 264 VAC) into the DC required to drive the light source.

As we all know, led lights are semiconductor devices, and they work according to electrical currents which run through them. The drivers also regulate the LED current to ensure that it is within a specified range. To make the electrons move through the semiconductor, we need to apply a certain voltage across it called forward bias voltage.

Now when we apply this bias voltage, there is a current flowing through the LED, and that means if this current increases, it will burn out the led, and if it decreases, then the brightness and efficiency of the LED will decrease. So there is a need for a device that can regulate the current going through it, and this is where an led driver comes.

8 Reasons That Causes Led Driver Damage

1. Over current:

LED drivers are designed to operate their circuits within a specific current range. If the current is too high or too low, the driver can be damaged. Sometimes it is the LEDs that are faulty and drawing too much current. In other cases, a wire link or connection might have been hot-wired by accident so connecting a pair of wires directly across the supply instead of using a through-connection with fuse.

2. Reverse Voltage:

When LED drivers are designed to work with DC voltage, it is essential to avoid reversing the polarity of the supply when connected. If the supply polarity is reversed, some LED drivers might be damaged.

Work With Dc Voltage

3. Heat:

When LEDs are pushed beyond their maximum current and forward voltage levels, they can generate a lot of heat. If this heat is not able to dissipate from the board and components over a long enough period, then the components on the LED driver can be damaged.

4. Short Circuit:

When LEDs are wired in parallel, it is essential to ensure that all the positive legs of one LED are connected, and each LED’s negative legs are connected. If this is not done, the LED may have a positive and negative leg. In this case, it will probably cause each LED to become forward biased, and current will flow from one diode to another via the connection points of two diodes in series short-circuiting both LEDs.

5. Reverse Polarity:

Reversing the polarity can cause more than just damage to the LED drivers. Sometimes, LEDs can be extremely bright when reverse biased, but they are not designed for this type of operation. If LEDs are forward biased with too much current applied, they may be damaged or destroyed.

6. Voltage Sag:

LED drivers often have a protection circuit that causes them to shut off if the supply voltage drops below a certain level. If this happens, then it is possible that the LEDs will not light and thus fail to illuminate.

7. Power Outage:

LED drivers can become damaged when there is a power outage. This is because some of the most advanced LED driver circuits have an internal memory that stores the most recent settings. Still, it only works if the LEDs are not being continuously energized under normal lighting conditions, which means that if they are constantly powered on, then this data cannot be stored.

8. Over temperature:

LED drivers are designed to operate within a certain temperature range. If the ambient temperature exceeds these levels, damage can occur. The heat generated by the driver’s circuit will be dissipated through conduction and convection. Still, if there is insufficient airflow or the design of the driver board does not allow proper dissipation, then a driver can be damaged.

Operate Within a Certain Temperature Range

Step by Step Guide: How to Repair Led Light Driver

Step 1: Gently Take Out the Led Driver

After locating your computer fan, turn it off and unplug it from its power source. This step will allow you to take out the LED driver without breaking anything easily. After locating the hard drive, use a flat head screwdriver to gently pry up one of the sides until you have enough space to insert a screwdriver or a flat head. With the hard drive lifted, take out the screws and gently pull the LED driver from its enclosure.

Step 2: Determine Which Led is Broken

You can choose to replace all LEDs at once if you have more than one broken LED. To do this, find a resistor that matches each color of led. You can try using a different resistor for each color if some LEDs still work. If some colors still don’t turn on, try using a higher number resistor.

Step 3: Solder the Resistors to Each Color LED

After you have determined which led is broken, take out your soldering iron and make sure there is enough solder to hold down the resistor. From here, heat up each lead of the resistor with the tip of the solder before placing it over the broken LED.

Step 4: Heat the Stub of the LED Using a Soldering Iron

When all of your resistors are firmly attached to each lead, heat up the stub of the broken LED and place it onto its matching resistor. Again, it is important that you do this before soldering the resistor and LED together! You may need to hold it down until the solder hardens.

Step 5: Replace the LED Driver With Screws

After all of your LEDs are successfully connected, replace the driver with its screws and secure it with a flat head screwdriver. Next, plug in the computer fan’s wire and turn it on to see if it works. The green LED must turn on as long as the others follow.

Secure It With a Flat Head Screwdriver

Step 6: Enjoy Your Successfully Repaired Led Driver!

If your computer fan does not light up, you can try replacing a higher resistor or replace all of the LEDs with new ones. If other LEDs still don’t work and you cannot find a resistor to fit them, replace them with new ones.

If your computer fan worked before but stopped working after the LED driver was replaced, it may be because of a faulty wire or fan itself. You can try replacing components if possible (like the motherboard) since they may be old and, then you have successfully repaired your LED driver!

Problems With Led Drivers and Voltage Conversion

When it comes to how many watts are used by the led light driver, this will depend on what type of LEDs are being driven. The more complex/brighter the color of the LED, the higher voltage is needed to power them. For example, clear LEDs can be powered off the input of between 1-2 volts DC, while blue LEDs need an input of around 5 volts DC.

The larger the LED driver, the more wattage it can process and convert into light energy. The more wattage the driver can process determines your grow lights’ size. For example, if you want 300 watts of power altogether, but the LED drivers only allow for 100 watts input max before burning out, you will need to purchase three 100 watt drivers instead of just one 300 watts LED light driver.

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Frequently Asked Questions

Can You Fix An Led Driver?

If your Led driver is not working, there are a few things that you can do to try and fix it. The first step is to check if the power cord is plugged in properly. If it isn’t, then you may need to replace the power cord.

Next, make sure that all of the light bulbs are correctly installed and connected by checking for continuity between each bulb and plugging in an Alternator tester if needed. Finally, test whether the led driver’s circuit board is operational by turning on one single lightbulb while also testing each individual wire connection on the circuit board with a meter or multimeter.

What Causes Led Drivers To Fail?

There are many factors that can contribute to a LED driver failing, including improper installation, problems with the USB cable, and incorrect voltage. Additionally, if your LED’s are exposed to extreme temperatures or sunlight for an extended period of time, their lifespan may be shortened.

By knowing the signs and symptoms of a LED driver failure, you can address the issue before it becomes more serious. For example, if you notice flickering or poor brightness in your lighted areas (particularly on high-traffic days), then it is likely that your driver has failed.

If this problem persists even after replacing the driver, then it might be best to call in a professional technician to inspect and repair your system as soon as possible.

Do All Led Lights Need A Driver?

No, not all LED lights need a driver. In fact, many LED lights operate with a power supply that is built into the light itself. These power supplies are often called “included LEDs.” While included LEDs do offer some benefits – such as being smaller and more energy-efficient – they do have some downsides.

One downside is that included LEDs often have shorter lifespans than regular LED lights, and they may not be as bright or as versatile as standalone lights.

Are Led Drivers Ac Or Dc?

LED drivers are considered to be ac, meaning that they use alternating current. This type of driver is more efficient and produces less heat than a dc driver. Additionally, LEDs typically last longer when used with an ac drive because the electric field does not have as much power in it and may eventually damage the LED light source.


If you’re experiencing problems with your LED light driver, you can try a few things before taking it in for repairs. First, make sure that the power supply is adequate and that the voltage matches the requirements specified by the light driver. If those checks pass, check the connections between the power supply and the driver.

Power Supply Is Adequate

If any of those connections are loose or corroded, tighten them or replace them. We hope you enjoyed reading our blog post on how to repair led light driver, and we’ll be back soon with more helpful advice. Please contact us if you have any questions or need assistance with the led lights driver!

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