Rescue Your Holiday Lights
Simple fixes to save money, reduce waste, and keep the holidays bright
It happens every year. You pull out the bins of holiday decorations, untangle lights that somehow tied themselves into knots, plug them in with anticipation… and nothing happens. Before you throw them away or rush to buy new strands, take a deep breath. Most broken holiday lights can be fixed at home with just a few minutes of patience, a couple of basic tools, and a little troubleshooting.
This season, give yourself the gift of saving money and keeping perfectly good lights out of the landfill. Here is how to get started, inspired in part by Popular Mechanics and their guide on how to fix a string of Christmas lights.
Step One: Diagnose the Problem
First, carefully inspect each string. Look for cracked insulation, frayed or bare wires, or damaged plugs. If you see those, it is safest to discard that string. If the wiring looks intact, determine what type of failure you have.
If one bulb is out, it might be a simple replacement. If part of a section is dark, you might have a bad bulb or loose connection. If none of the lights come on, you may be dealing with a blown fuse in the plug or a bad wire connection.
Step Two: Find the Bad Bulb
Many light sets are wired in series, meaning one bad bulb can darken a whole section. Try these steps.
- Gently push each bulb down in its socket to make sure it is seated
- Swap a suspected bulb with one that you know works
- Use a bulb tester, recommended by Popular Mechanics, to locate the problem quickly
If you find a faulty bulb, replace it with a bulb of the same voltage rating to avoid damaging the rest of the strand.
Step Three: Check and Replace the Fuse
If bulb testing does not help, check the fuse inside the plug. Many light sets have a small sliding door on the plug that opens to reveal a tiny glass fuse. If the fuse is blown or cloudy, replacing it can restore the entire strand. Fuses are often part of the packet of replacement bulbs that came with your box of lights. You can also purchase them for a few dollars from any store that sells holiday lights. This fix is simple, low cost, and often saves you from buying new lights.
Step Four: Check Filaments and Shunts
Sometimes a bulb appears fine, but the filament inside has broken, or the internal shunt is not working. A popular tool used for this type of repair is the LightKeeper Pro (about $20), which sends a controlled pulse into the socket. This pulse can reactivate the shunt and restore the circuit. It is an easy step that often fixes large dark sections.
If that does not work, keep moving along the string and testing bulbs until you find the problem. A tool like this can save entire strands that might otherwise be thrown away.
Step Five: Upgrade Responsibly
If your lights truly cannot be saved, consider switching to LED strings. They use less energy, last longer, and reduce the number of repairs you will need in future holiday seasons. If you do upgrade, recycle old light strings at a holiday light recycling event rather than throwing them away.
A Quick Note About Repair Events
At Columbia Springs Repair Events we help with appliances, tools, electronics, sewing projects, sharpening, and more. While we do not repair holiday lights at our events, this is absolutely something anyone can do at home. The steps above can help you revive strands yourself. Repairing what you have is a powerful way to save money and reduce waste.
Bonus: Make Holiday Repair Time a Family Activity
Kids love hands-on problem solving. Invite them to help test bulbs, look for cracked wires, or label storage bins. This is a fun activity that teaches useful skills and creates memories.
This season, keep your lights shining bright without sending another strand to the landfill. A few simple fixes can help you enjoy the holiday glow while practicing resourcefulness and sustainability.
Happy repairing and happy holidays.
Product Disclaimer
References to specific tools or websites such as Popular Mechanics and LightKeeper Pro are provided for helpful information only. Columbia Springs is not affiliated with these companies or products, does not receive compensation, and does not endorse any specific brand. If you are interested in finding tools or replacement parts, you can click through to the Popular Mechanics article to explore their links and recommendations.
Photo by frankieleon, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons