However unplug the string of lights which shows the problem.
How to fix a bad string of christmas lights.
Larger light sets often have two or more circuits wired in parallel which explains why sometimes just a section of the string goes dark.
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.
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.
So at first check the fuse when lights show problem from being lit.
Unfortunately they are also notorious for being among the most finicky holiday decorations.
Christmas lights are one of the most iconic beacons of the holiday season.
If a fuse is black or has a broken wire inside gently pry out the blown fuse with a thin screwdriver.
It may need some.
The christmas light tester will indicate which bulbs are bad and need to be replaced.
In most cases simply replacing one bad bulb will fix the.
Some christmas light testers work by having you slide each christmas light bulb through a hole.
Larger light strings may contain two circuits.
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.
Finding bad bulbs on incandescent christmas lights.
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.
Usually a string of christmas lights requires one or two fuses.
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.