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.
Are all Christmas light fuses the same?
Short answer: Yes, most Christmas lights have fuses in the male plug end. If the entire string of Christmas lights has gone out, this is the first thing to check for troubleshooting.
Why are there two fuses in Christmas lights?
Fuse Faults. Typically, these strings of lights have two tiny fuses, one in each side of the AC line, located inside the AC plug. The fuses are intended to melt or “blow” before the copper wires in the string could melt or cause a fire from overload.
What size fuse do Christmas lights use?
Incandescent Mini Light Sets use 3 amp fuses. Heavy Duty light sets 5V use 3 amp fuses. C7, C9 light sets use 5 amp fuses. G40, G50 light sets use 5 amp fuses.
Will Christmas lights work if one fuse is blown?
Take a small tool, such as an eyeglass screwdriver, and pry out the fuses. Then, gently press in the new fuses. Close the cover, plug the lights in, and they should work. Bello notes that if the fuse blows again, it is likely due to damage in the light strand.
What causes Christmas lights to stop working?
Whether you’re using traditional incandescent lights or LED lights, your plug in Christmas lights may have gone out for any of the following reasons: The circuit isn’t carrying power. A fuse has blown. A bulb has burnt out and has created a cascading outage.
What do you do if your Christmas lights don’t work?
How to Fix a String of Christmas Lights
Diagnose the problem. Carefully inspect each string of lights before plugging it into an electrical outlet. Find the bad bulb, and swap it out. Fix the faulty filament or shunt. Replace the fried fuse. Upgrade your lights.
Can you bypass a fuse on Christmas lights?
Blown fuses are one of the biggest culprits of broken Christmas lights — especially if the entire chain of lights is non-functional. The good news is that they can easily be replaced! With the plug in hand, slide the door marked “Open” in the direction pointed by the arrow.
Do all Christmas lights have two fuses?
Most string lights have two tiny fuses inside the plug. Typically, a box of lights is also packaged with a replacement fuse or two. To replace a fuse, take a small set of pliers or flathead screwdriver and slide open the cover. Then gently pop out the fuse and replace it with new ones.
What size fuse do C9 Christmas lights use?
Perfect for C7 & C9 Christmas Lights 5 AMP 125 Volt 5x20mm (About 3/4″ inch long.) Fast Blow,glass tube body cartridge fuse These are the spare / replacement fuses you need for those great Christmas lights you like.
