Neon signs are eye-catching, vibrant, and long-lasting. But like all electrical items, they can develop problems over time. One of the most common issues is dim or flickering lights. If your neon sign isn’t as bright as it used to be or flickers on and off, it could signal a problem. This guide will help you troubleshoot and understand what’s causing these issues and how to fix them.

Why Do Neon Signs Flicker or Become Dim?

Neon signs rely on neon gas, electric power, and proper wiring to light up. When any of these elements have a problem, your neon sign may start to flicker or look dim. There are several reasons for this, from a broken part to a wiring issue. Identifying the exact cause is the first step in neon light sign repair.

Common Causes of Dim or Flickering Neon Signs

Below are some of the most common causes of flickering or dim neon signs. Each of these issues has different solutions, depending on the nature of the problem.

1. Power Supply Issues

One of the most frequent reasons for flickering is a problem with the power supply. Neon signs need a constant and stable source of electricity to glow. If the power is inconsistent or too weak, your sign may flicker or become dim. Check the power outlet and make sure it’s delivering the right voltage. If you aren’t sure how to do this, a professional lighted sign repair technician can help.

2. Faulty Transformer

The transformer is an essential part of any neon sign. It converts the electrical current into high voltage to light up the neon gas. A broken or malfunctioning transformer can lead to a dim or flickering sign. Transformers may wear out over time, especially if the sign is left on for long hours. If you notice buzzing noises along with flickering, the transformer could be failing. Replacing the transformer is often the best solution.

How to Fix Flickering or Dim Neon Signs?

Once you’ve identified the cause, it’s time to fix the problem. Some issues are simple and can be repaired at home, while others will need the help of a professional.

1. Check the Power Supply

Before doing anything, check the power source. Make sure your sign is plugged in properly and that the outlet is working. Try plugging the sign into a different outlet to see if the problem persists. If the sign works fine in another outlet, the problem might be in the original power source.

2. Replace the Transformer

If you hear a buzzing sound along with flickering, the transformer is likely the issue. Replacing a transformer can be tricky, so it’s best to consult with a lighted sign repair expert.

Final Words

A flickering or dim neon sign can be frustrating, but it doesn’t always mean the sign is broken beyond repair. By identifying the cause and addressing it early, you can restore your neon sign’s brightness and avoid costly repairs. If you’re unsure or uncomfortable with the repair process, always consult a professional to ensure your lighted sign repair is done safely.