LED strips are becoming more popular on house lightning, commercial decoration, and stage atmosphere creation. But when you use LED strips, sometimes half of the LED strip not working. This condition affects lighting. Next, we will list 20 common reasons why some LED strips are not working properly and provide corresponding solutions to help you solve the problem.
1.Power adapter failure
The power adapter is to provides power to the LED strip, if the internal components is damaged, such capacitor leakage, diode breakdown, or transformer winding short circuit, then it may not be able to output normal voltage, and causing the strip to not work.
Solution: Please use a voltmeter to check whether the output voltage is normal. If the voltage does not match the rated voltage of the LED strip, please replace the power adapter with a new one to ensure that the parameters match.
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2.Damaged power cord
The power cord is easily bent and pulled during use, which may cause the internal wires to break and hinder current transmission.
Solution: Check the appearance of the power cord carefully and replace it if it is damaged. You can also try using an ordinary power cord to test; if the LED indicator returns to normal, the original power cord is damaged
3.Poor contact with power sockets
If the power socket is used uninterruptedly for a long time, the internal shrapnel may become loose, oxidized, or accumulate dust. These conditions may cause poor contact with the LED strip plug and affect the transmission of power.
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Solution:Unplug the plug, clean the dust from the socket, and check the shrapnel. If the spring piece has been deformed, please adjust it carefully; if the socket is seriously damaged, please consider replacing it.
4.Loose or damaged LED strip connection plugs
The connecting plug is easily loosened by frequent plugging and unplugging, and the metal contacts may be oxidised and deformed, affecting the signal and current transmission.
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Solution: Check whether the plug is inserted tightly; if loose, then reinsert firmly. If the plug is damaged, you need to replace the plug that matches the LED strip.
5.LED strip soldering points fall off or false soldering
Poor production processes or vibration or collision of the LED strip may dislodge the soldering points or make false soldering, resulting in current interruption.
Solution: A small number of welding point problems can be patched by yourself, but you need to master the welding skills. Otherwise, it is recommended to seek professional maintenance personnel to deal with.
6.Broken connecting wires between LED strips
The connecting wires may break due to crushing, excessive bending, or ageing, blocking the transmission of current between LED strips.
Solution: Check along the connecting wire, locate the break, and connect it with a suitable wire. If the location of the break cannot be determined or there are multiple damages, consider replacing the entire connecting wire.
7.Individual LED beads are damaged.
LED beads may be damaged due to overvoltage, overcurrent, high temperature, or quality issues, resulting in the failure of the part of the strip in which they are located.
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Solution: Observe to find out the non-bright LED bead and available repair tools to try to repair. If it cannot be repaired, you can contact the manufacturer or professional repair store to replace the LED bead.
8.Ageing of LED light beads
After a long time of use, the beads will gradually age, and the luminous efficiency is reduced or even unable to emit light.
Solution: If it is determined that the beads are ageing, because ageing is usually a gradual process, it is recommended to replace the entire strip to ensure stable lighting effects.
9.Circuit board breakage
The circuit board of the LED strip is bent or broken by external force, which interrupts the circuit and blocks the transmission of electric energy and makes part or all of the LED strip not work normally.
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Solution: When the LED strip is found abnormal, check the circuit board to find the fracture. If the fracture is light, use the wire bridge to repair it; if it is a heavy fracture, change the new product. When installing and handling, operate carefully and avoid using large external force.
10.Controller failure
The controller is the “brain” of the LED strip; internal circuit components are damaged or program errors, such as chip burns, electromagnetic interference with the program, or upgrade errors, will lead to part of the LED strip being out of control.
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Solution: Try to restart the controller first; if it is invalid, check if there is a firmware update and upgrade according to the process. If it still cannot be solved, you need to replace the controller that matches the LED strip.
11.Connection problems between the controller and the LED strip
Loose, damaged, or poor contact of the connecting wire or plug between the controller and the LED strip will block the signal transmission.
Solution: Check whether the connection line is firm, the plug is intact, and the interface is clean. If there are problems, repair or replace accordingly
12.Effects of static electricity
Static electricity generated in the daily environment, high voltage and sudden energy release, LED strip sensitive components are fragile and easily damaged by static electricity, resulting in the loss of light in some areas.
Solution: Before installing and maintaining the LED strip, touch metal objects or wear anti-static bracelets to release their own static electricity to avoid accumulation. When storing and transporting, use anti-static packaging materials to protect and reduce static electricity damage.
13.Excessively high or low temperatures
LED strip has requirements on the working temperature,poor heat dissipation when high temperature will damage the beads, when the low temperature will make the battery performance decline or component parameters change, and will affect the operation of the LED strips.
Solution: Can increase the heat dissipation device in a high temperature environment, such a heat sink or fan,a low temperature environment can take heating measures or wait for the temperature to return to normal and then use it. When installing, you need to consider the ambient temperature and do a good job of heat dissipation and insulation design.
14.Short circuits due to humid environments
If in the humid environments, the moisture may can enter the interior of the LED strips and cause the short circuits, and cause some of the LED strip not work.
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Solution: If you have find the LED strip is damp and half of it does not work, then cut off the power, and take out the LED strip and dry it, and put it in a ventilated dry place to dry it. Please make sure it’s completely dry before powering on and testing.
15.Excessive accumulation of dust
Used in dusty environments, the accumulation of dust on the surface of the LED strip will affect heat dissipation and may also cause short-circuit failures when wet.
Solution: Regularly use a hair dryer with a cold wind gear or a small vacuum cleaner to clean the LED strip dust, paying attention to avoid damage to the LED strip while keeping the use of environmental cleanliness.
16.Electromagnetic interference
Surrounding electromagnetic sources, such the large electrical equipment or radio signal emission sources, maybe will interfere with the LED strips, and may resulting in controller program errors or abnormal signal transmission.
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Solution: Keep the LED strip far away from the source of electromagnetic interference, or use shielded wires to connect the LED strip with the power supply and controller, and an electromagnetic shielding device can be installed, but please pay attention to heat dissipation.
17.Overload protection trigger
Connecting too many LEDs or accessing devices with too much power, exceeding the rated load of the power supply or controller, will trigger the overload protection and prevent some of the LED strip from working.
Solution: Check the load, and reduce the number of connected devices so that the total power is within the rated range. When adding new devices, know the LED strip and power supply load capacity first.
18.Software conflicts (if the LED strip is a smart device)
The control software and firmware of the smart LED strip may be in conflict, such as incompatible software updates or conflicts with other applications, resulting in abnormal LED strips.
Solution: Update the LED strip firmware and control software to the latest version. If there is still a conflict, uninstall and reinstall the control software, re-pair the devices, and avoid running conflicting applications when using them.
19.Physical damage due to improper installation
During installation, improper force may squeeze the beads and damage the wiring, and excessive bending may also damage the LED strip.
Solution: Check the LED strip for physical damage; minor problems can be carefully adjusted and repaired, while serious damage requires replacement of damaged parts or the entire LED strip. Be sure to follow the manufacturer’s instructions when installing.
20.Product quality issues (bulk)
Newly purchased LED strips that are partially inoperative may have a manufacturing quality defect.
Solution: Contact the manufacturer or seller in a timely manner, provide proof of purchase, and request repair, replacement, or refund according to the warranty policy. When purchasing, choose formal channels and check the quality certification and user reviews.
The LED strip part does not work for a variety of reasons; troubleshooting needs to take into account a variety of factors. After mastering the above reasons and solutions, the face of such problems will be able to deal with them more calmly so that the LED strip continues to play a good role in lighting and decoration. At the same time, the daily use and installation process, the correct operation, and maintenance can effectively extend the service life of the LED strips and reduce failure.
