Where is the fuse in Christmas lights?

Holiday lights usually have cartridge fuses in a small compartment in the cord plug behind a sliding door. The fuse is a small, glass cylinder with metal-plated ends and an internal metal filament.

Why is there a fuse in Christmas lights?

There are fuses behind that door!! When the current exceeds the rating of the fuse, the wire inside burns and opens the circuit. (Which means your lights are no longer receiving electricity and go off.) Fuses are usually included with Christmas lights so keep them in a labeled bag ready for future use.

How do you tell if a fuse is blown on Christmas lights?

Step 1 Blown Fuses With the plug in hand, slide the door marked “Open” in the direction pointed by the arrow. Remove the two fuses, and inspect them by looking at them up against a bright background (such as the sky). If the fuse is good, you should see an unbroken strand of wire running between the two metal contacts.

Why did my string lights stop working?

If half a strand is working and the other half is not, you probably have a loose or broken bulb. Start with the first unlit bulb and work your way down, wiggling them to check for looseness. If it flickers, that’s your cue to replace it.

Why are half of my Christmas lights not working?

How do you fix Christmas lights that won’t turn on?

Check the fuse or fuses from the plug at the end of the light strand (usually the glass-cylinder type with a wire filament). Use a small screwdriver to pop out the tab and open the plug. If the fuse is charred or burned out, replace it with a new fuse, and plug the light strand in your outlet.

How do you check a fuse for a string of lights?

Check Christmas Light Fuse With the flat-head screwdriver, slide open the door. Remove the tiny, cylindrical fuse. Hold the fuse up to the light. If it is brown or black inside or if the filament is visibly severed, the fuse likely no longer works.

How can you tell if a fuse has blown on a Christmas light?

You can sometimes tell by sight if a fuse has blown; the metal filament inside the glass cylinder will have a break in it. Replace the blown fuse with a replacement fuse of identical size and rating. If you can’t tell by sight that a fuse is broken, test each fuse by replacing it with a fuse you know is working from a functioning light strand.

How big is a 5 AMP Christmas Light Fuse?

. . 40 Pieces Replacement Fuses for Christmas Lights C9, C7 and G40 Fast-Blow Glass Fuse 5 Amp 110/ 125V TS-C7 Glass Fuses Fast Acting Cartridge Fuse Quick Blow Glass Tube Fuse 0.2 x 0.78 Inch (5 x 20 mm) . . .

How can I tell if my Christmas lights are broken?

If you can’t tell by sight that a fuse is broken, test each fuse by replacing it with a fuse you know is working from a functioning light strand. If all the fuses are functioning, move on to step 4. Completely unravel your string lights and check for broken wires and sockets.

Where are the plugs on a Christmas light?

Most of the time, there is a little door in the male plug of your lights – whether they are light strings that have two plugs – male and female – or a set of craft lights that only have a single male plug. See this photo below of a mini Christmas light plug with the little door.