LED Light Fixture Not Working? Common Reasons and How to Fix


If you’re having problems with your LED light fixtures, don’t worry! You’ve come to the right place. In this post, I’ll cover all of the possible causes and solutions for when they stop working properly – let’s get started, shall we?

Fixtures are well-made and, therefore, tend to last for many years. Some can run maintenance free save the need to change burned-out bulbs but nothing is impossible in this world, so even though your fixture might be one of those that never needs servicing, there’s always a chance it could develop problems down the line – something you may not notice until after its too late!

LED light fixtures are especially prone to a few issues (which we’ll explore in depth later), but don’t worry–most of the time, the solutions are quite straightforward. For example, you may need to adjust the socket or swap out the bulb.

Always start by diagnosing the problem. Before you try to find out why your LED light fixture isn’t working, get an idea of the most common issues.

LED Light Fixture

The common reasons are:

  • Fluctuations in power can occur for any number of reasons.
  • The electrical installation does not adhere to the building code.
  • Flaws in the manufacturing process.
  • Dimmer is incompatible with your LED light.
  • This transformer is not for use with low-voltage lamps.

Diagnose Common LED Light Fixture Problems

Problematic lights can be a headache for homeowners. Certainly, many times it’s not just one thing wrong with your fixtures but several issues transpiring at once and coming from different places throughout the house – whether you believe that power interruption is responsible or not!

The most frequent problem area in these situations will often involve an interrupted connection between fixture hardware such as sockets on walls/CEOs (generators), bulbs themselves, plus any other decorations inside like dimmer switches, etc…

When the light bulb in your house is flickering or not shining brightly, you can usually tell there’s a problem. Otherwise, if nothing comes on at all when the switch turns in either case, then maybe it’s time for an upgrade!

If you’re not a trained professional, electrical wiring and setup can be extremely dangerous. You risk fire, electrocution, and serious injury if you attempt to work on the electrical system yourself. It’s best to leave it to someone who knows what they’re doing.

Check the Socket

The best way to fix a bulb that isn’t working is to check the socket tab at the bottom center of the socket. If it’s become flattened, bend it back up gently.

A simple change like this can help keep your lightbulbs lasting longer. But before you do anything, remember to always play it safe by shutting off the power first!

Further Minor Checks

The bulb may not fit snugly in the fixture, causing poorer performance.

If the lightbulb isn’t working, your best chance is to see if it’s screwed in all the way. Weakened bulbs may fix themselves simply by being screwed in tighter.

Check the Wire Connections

Unless you’re a qualified technician or knowledgeable in this area, light fixtures can become more complicated if connections are disturbed.

Using an Electric Multimeter to Check for Short Circuiting

Multi-meter is used to check for the flow of power. All you need to confirm is that the electric charge is successfully passing from one end to another end, if there is a disturbance in the flow, then it’s called a short.

In more understandable terms, an electric short is an indication that your light fixture’s electrical system needs repair. Continuity testing is an easy way to find out what’s wrong without taking everything apart.

How to Check for Short Circuiting Using an Electric Multimeter?

To start, turn on the knob of the multimeter settings. The unequal measurements you want to look for will appear on the multimeter.

By doing this, you can find the root of the problem and fix it as soon as possible.

We would always promote safety for anyone considering going down this path. If you’re unsure of what you’re doing, speak with an electrician first.

Minor Issues of Why LED Light Fixture Not Working

If the wiring seems to be in order, the next best step is to check for other potential issues. In some cases, incompatible switches might be why an LED light fixture isn’t working.

Be mindful that many new model LED lamps cannot be used with switches from the past. However, if that is not what’s causing the problem, there are a few other things you should check for:

Driver Components

If your LED lights are flickering, it is likely because of problems with the driver components.

Did you know that newer LED lights have driver components that are less likely to flicker?

Though they are not perfect, Apple products are very reliable.

Get an electrician to inspect these for you and if the driver components are at fault, ask them to replace them with constant-current drivers.

An inconsistency often causes flickering in the wave, but this method of evening out the peaks helps to eliminate that.

Capacitor & Relaxation Oscillator

Some cheaper fixture components, such as capacitors, have shorter lifespans and are more likely to break down.

More specifically, capacitors control the current delivered to the LED through a driver module.

The relaxation oscillator is a common component that can cause issues. It makes the capacitors inside an LED lamp flip on and off in cycles. The ‘off-cycle happens when the lamp is turned off so it can charge again.

The relaxation oscillator is responsible for the temporary illumination and, subsequently, the flickers. If it isn’t functioning correctly, it’s best to replace the entire component.

Incorrect Wattage

The light fixture will use more power when installing it, but then the user will even out after some time.

The sudden demand for extra electricity can cause your LED lights to flicker because of the drop in power. In that eventuality, the best solution is to move your fixture onto a high-voltage circuit.

Final Thoughts

If your LED lights are giving you grief, don’t worry! The best thing to do is troubleshoot the problem through a step-by-step process.

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