LED Neon Sign Troubleshooting: Fix Common Issues in Minutes

One of the best things about LED neon signs is how little maintenance they need — no gas, no glass tubes, no high-voltage transformers. When something does seem off, it's almost always a quick fix with the power supply or the remote. Here's how to sort out the common ones.

Sign Won't Turn On

Check the basics first: is the power adapter fully seated in the sign's connector and plugged into a working outlet? Try a different outlet to rule that out. If the adapter itself feels unusually hot or shows damage, unplug it and contact us — don't use a third-party adapter, since the wrong voltage can damage the sign.

Remote or Dimmer Isn't Responding

This is the most common "issue" and it's almost never the sign. Replace the remote's battery, make sure you're pointing it at the sign's receiver with a clear line of sight, and check that nothing is blocking the small receiver box on the power cord. If it worked before and stopped, re-pairing or a fresh battery fixes it 9 times out of 10.

A Section Looks Dimmer Than the Rest

Gently check that all connectors along the power cord are snug. If one section of the sign is noticeably dimmer and the connections are fine, that's a warranty matter — don't try to open or repair the sign yourself. Contact us with your order number and a photo, and we'll make it right.

Flickering

Flickering is usually the power supply, not the LEDs. Make sure the adapter connection is tight and the sign isn't sharing an overloaded circuit or a flaky extension cord. Plug it directly into a wall outlet to test. Persistent flickering with a good connection means the adapter may need replacing — reach out and we'll help.

Cleaning and Everyday Care

Dust is the main enemy. Wipe the sign down with a soft, dry cloth — no water, no solvents, no harsh cleaners. Our signs are indoor-rated, so keep them out of rain and prolonged direct sun, which can fade colors over time. If you chose a battery-powered option, keep the rechargeable pack charged between uses — a full charge means full brightness. That's genuinely the whole maintenance routine.

When to Contact Us Instead of Troubleshooting

If you've checked the power and remote and something still isn't right — or if there's any visible damage to the cord, adapter, or acrylic — stop and contact us. Every sign is covered by our warranty, and we'd rather sort it out for you than have you risk the sign (or yourself) with a DIY repair. Email sales@bestbuyneonsigns.com or call 213.375.4406 with your order number.

Best Buy Neon Signs
Office: Hollywood, CA 90028
Factory: South El Monte, CA
sales@bestbuyneonsigns.com
Phone: 213.375.4406