How To Fix A Bad String Of Christmas Lights

Some christmas light testers work by having you slide each christmas light bulb through a hole.

How to fix a bad string of christmas lights.

So at first check the fuse when lights show problem from being lit. Incandescent string lights are wired in a series. Christmas lights are one of the most iconic beacons of the holiday season. The christmas light tester will indicate which bulbs are bad and need to be replaced.

Yesterday we had a three wire christmas light string where the first half of the string was working but the second half of the light string wasn t working. But the latest led lights require one a tiny fuse. That means the electricity must pass through each bulb to complete the circuit and a single bad bulb can make the whole string go dark. Unfortunately they are also notorious for being among the most finicky holiday decorations.

Second test the christmas light bulbs with an inexpensive tester available where holiday lights are sold and online usually changing a problem bulb or tightening it will fix the entire strand. We couldn t fix it by replacing the bulb right where the light string stopped working so i looked into it and found this helpful but a little too technical article. If a fuse is black or has a broken wire inside gently pry out the blown fuse with a thin screwdriver. Larger light sets often have two or more circuits wired in parallel which explains why sometimes just a section of the string goes dark.

In most cases simply replacing one bad bulb will fix the. If you find yourself troubleshooting christmas lights more often than enjoying them then learn how to fix christmas lights quickly and identify problems before they start with the help of this guide. However unplug the string of lights which shows the problem. Finding bad bulbs on incandescent christmas lights.

To fix christmas lights if the entire string goes out start by unplugging the string and opening the fuse case which is the plastic box attached to the electrical prongs. Larger light strings may contain two circuits.