Find Christmas Tree Lights Burned Out

Open the fuse cover on top of the plug by sliding the cover toward the blades or prongs.

Find christmas tree lights burned out. A string of christmas lights typically has one or two tiny fuses in the plastic box attached to the prongs. If one of the wires is misaligned or if a bulb is pulled out from its socket the current is broken and the light strand will go out. The only way to fix the problem is to find the bad bulb. Many christmas string lights are wired in series so if one bulb bu.

Sometimes only a section of the lights will go out making your job pretty easy. These often get stuck so you may need to use some force. Ensure each bulb is seated properly and fully in its socket. How to find the bad bulb on a string of christmas lights step 1.

That means pulling off each bulb replacing it with a good bulb and plugging it in. Double check that the tree is unplugged from the wall and then check each plug and connector for a blown fuse. When an entire string of christmas lights goes out it is because that string is wired in series. Replace any blown christmas light fuses.

However if the entire string of lights is out you will need to check every lightbulb. Unplug the strand and replace the bad bulb with a new bulb of the same size and the same voltage rating. Check for any bulb that is missing or partially unseated from the socket and if you find a space or wonky bulb replace the bulb with one of the two extra bulbs that hopefully were included with your light set or gently push the bulb back into its socket. Slide this door open pry out the small glass fuse and examine it closely.

Modern sets of mini lights have a small cartridge fuse found in the cord plug inside a small sliding door. Most prelit trees have fuses inside the electrical plugs. Unplug the cord from the wall. Some light strings may have two fuses.

Bulbs that have burned out should be easily detectible since the glass will be darkened around the broken filament. Visually inspect each bulb in the part of the christmas light string that is out. Open the fuse case. Don t take out and reinsert each bulb because that s hard on fingers and will more than likely create larger problems.

Examine the plastic closely on the side of this box and in between the prongs for a cover you can slide or pry open. First slide back the plastic covering on the plug to check the christmas light fuse. It s usually possible to see a break in the small metal filament inside the glass fuse if it has burned out. Two thin wires stick out at the bottom of each mini light bulb which make contact with the metal connectors for current to the bulbs and shunts.

New christmas light fuses are available where christmas lights are sold and at some electronics stores. If you re able to locate a bad bulb just unseat the bulb remove the bulb from the plastic base and replace it.