How To Fix A Bad String Of Christmas Lights

Procedure to check and replace the blown fuses.

How to fix a bad string of christmas lights.

Incandescent string lights are wired in a series. 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. 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. Larger light sets often have two or more circuits wired in parallel which explains why sometimes just a section of the string goes dark.

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. Usually a string of christmas lights requires one or two fuses. Some christmas light testers work by having you slide each christmas light bulb through a hole.

However unplug the string of lights which shows the problem. So at first check the fuse when lights show problem from being lit. 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. 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.

Finding bad bulbs on incandescent christmas lights. In most cases simply replacing one bad bulb will fix the. The christmas light tester will indicate which bulbs are bad and need to be replaced. It may need some.

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. If a fuse is black or has a broken wire inside gently pry out the blown fuse with a thin screwdriver.