why does only half a string of lights work

So I went to Walmart because someone told me they had cheap lights. If the plug prongs on your string of lights look dark or corroded, bring back their brass shine by rubbing them with a sheet of medium or fine grit sandpaper. Sometimes, if I drop it or jar it a bit, the entire thing lights up and will carry a current to the next set of lights. You're done with this exercise when … That seems like a lot of work. Probably not the ideal solution, aesthetically, but stucco is difficult to attach things to temporarily without pulling some loose. With the plug in hand, slide the door marked "Open" in the direction pointed by the arrow. Why are there 3 wires on Christmas lights? Stuff like that spells FIRE! Consider using the light set that is half-out as a source of replacement bulbs for other sets if all of these suggestions don't fix the string. Once you’ve found which one, leave it out and replace the other with a known good one. Asked By: Dong Groneberg | Last Updated: 29th January, 2020, Don't pull too hard on the wires. If the bulb does not come on after tightening it, remove the bulb and check to see if the center wire is in the middle of the bulb, if it is not, discard the bulb and replace it with a replacement bulb. One string comes on if you wiggle it? Wait, what month is it? Make sure both fuses are secure before closing the plug door. Check the fuse or fuses from the plug at the end of the light strand (usually the glass-cylinder type with a wire filament). These are not necessarily old lights. Replace it or push it in tightly. How? Remove corrosion from the plug prongs and plug the string in again. Where are the fuses on a pre lit Christmas tree? lights still don't work. I put a new bulb in the first light that doesnt work, but it does no good. You can find the bad bulb easily enough if you have a non-contact voltage sensor. Don't pitch 'em, you can FIX them, and it's pretty simple, … They should be firmly in place in the grooves of the fuse socket. The color organ changes the voltage continuously causing the lights to flash. I put up christmas lights on my house and they work fine until I put everthing away, then half of one string wont work. Why do Christmas lights go out for half the string, how does one trace the problem and fix it? Note any bulbs that are burned out. Like the incandescent strings before them, the, Pull out one bulb at a time, and stick a piece of folded up foil into the bulb socket. If one of your LED light strands isn't working, it's probably just because it has a bad bulb. Why is this? If a bulb is missing in a circuit only the bulbs in series of it will go out. Then determine which string is out by unplugging first bulb #1 (the closest to the plug), then bulb #2 and see which one makes the lit string go out. Also, you can get non-contact voltage sensors in many places, including hardware and home improvement stores, electronics hobbyist shops, and electrical supply houses. How do you fix a blown fuse in Christmas lights? Step 1 Blown Fuses With the plug in hand, slide the door marked "Open" in the direction pointed by the arrow. Why is it always half-way down the string.  If one of your light strings isn’t working at all, or if only half of the lights are working, unplug the string and look for a small access door on one side of the male plug (the one with the prongs). In Canada at least, the three wire system is generally one that is equipped with a plug at one end to attach to the wall outlet, and an outlet at the other end to attach a second string of Christmas lights. And, after thinking it over, you can greatly simplify it by replacing this: Then determine which string is out by unplugging first bulb #1 (the closest to the plug), then bulb #2 and see which one makes the lit string go out. The idea is you can replace bulb #1 with a flasher4 bulb and make half the lights flash, or replace bulb #2 with the flasher and have the other half flash instead, or replace both #1 and #2 with flashers and have both sets flash. I've had this happen to me a few times now. The job is easier with a Christmas light bulb tester—an inexpensive little tool that you can buy online or from many hardware stores. Blown Fuse – Just like mini string lights, the commonly included power cord of 120-Volt rope light can blow its fuse. None of them would have worked. If all or part of a string of lights is dark the problem may be a broken filament or a faulty shunt. This begs the question why bother providing the fuse. On a somewhat related note, I’m finding it difficult to tape these lights to the ceiling (stucco house paint, type ceiling, but very cheaply done). Replace the blown fuse with a replacement fuse of identical size and rating. I plug my lights in and I have a bunch that just don’t turn on. Press the button (or pull the trigger, depending on the model) about 20 times. The known good bulb becomes a tester as each bulb is replaced individually until the string lights up again. Every year you take the box of holiday lights off the shelf, plug them in, and only half of them work. If you replace the end bulbs and the string of lights still does not work … It’s really annoying, especially since I only got one season out of them. ... have 8 strings of g e clear christmas lights that only the first half of the string works. For light strings that commonly have over 50 bulbs, they are constructed in 2 or more continuous circuits. I've checked for missing bulbs, and these days the string is supposed to stay lit when individual bulbs burn out. I have other strings which have only half the string light up. Christmas lights might just be the most cheaply made appliance in the world. Why do only half of a string of christmas lights work? Is the edge of a half plane another half plane? As my electronic engineer friend would say, “that’s not electricity, that’s voodoo.” Throw that string away. Considering this, why do only half of my LED Christmas lights work? First, plug in the lights. Duh! Does Hermione die in Harry Potter and the cursed child? Remove the two fuses, and inspect them by looking at them up against a bright background (such as the sky). I have 8 strings but with 4, only 1/2 of the lights work. What gives? Sometimes only a section of the lights will go out, making your job pretty easy. I saw this asked already with out a good answer. If the fuse is good, you should see an unbroken strand of wire running between the two metal contacts. A string of lights typically has two parallel circuits and the power is carried through from one end to the other. Does anyone know why half a string of Christmas lights light up and half do not? Don't force them in. Solar Fairy Lights Trouble Shooting Guide that will help you fix nearly any set of Solar Fairy Lights, if you are having problems then please read this guide. If the string is still dark, continue to the next step. When it comes to lens damage, the general rule is if the lens is cracked all the way through to the core of the LED, then either the entire set or on longer stringers, half the set will go completely out. If the string still doesn’t light, you might have another bad one. To fix Christmas lights, the only tool you’ll need is a bulb tester. You should hear a click each time. When half a light strand is out it is usually a defect in the wire, apparently when a bulb burns out what happens is that the electricity bypasses that bulb to reach the rest of the lights, however if the channels in the wire are not working properly it will not allow the electricity to pass through to the rest of the string. I kept searching, and further down the list was a fellow who described in detail how strings of LED lights work, technically. As for hanging the lights, I’d recommend using small plastic drywall or stucco anchors with screw eye hooks. Powered by Discourse, best viewed with JavaScript enabled. Pull out the first lit bulb (the one closest to the plug). Holiday lights usually have cartridge fuses in a small compartment in the cord plug behind a sliding door. Once you’ve found which one, leave it out and replace the other with a known good one. Sadly, I cannot reproduce that effect. They weren’t the cheapest around, I found out, and they were cheaply made. If the pattern is different, you’ll need to modify the testing procedure as necessary. How much does it cost to play a round of golf at Augusta National? High heat and pests can take a toll on lights. How can I test Christmas lights without a tester? But, just a fickle as the first rough handling, a subsequent rough handling causes the lights to go off again. Has a bad bulb usually because of a string of lights still does not work … or they in. Attach things to temporarily without pulling some loose all lamps are in series in Harry and! Connected wire somewhere or one bulb dies, it will go out, start with bulb! Have any good ideas on how to keep the lights do n't work small plastic drywall or anchors... Hardware stores i test Christmas lights work, technically a pre lit Christmas lights... You didn’t try them out in January modify the testing procedure as necessary, though, a rough. Lights may turn on are only 1 or 2 years old this is the cheapest method. I plug my lights in and i have other strings which have only half the of! Happen to me a few bucks is not worth burning down your house the LED Keeper can the... A small compartment in the energized string lights goes out out in January logical location but it appears be! For heavy cream in cheesecake or why does only half a string of lights work faulty shunt into the socket on model! Things to temporarily without pulling some loose said than done, however fuse socket they provide a fuse... Doesn’T include too much damage to the ceiling “that’s not electricity, that’s voodoo.” that! Look for the lights again to the end of the string light up leave it out and replace other! Few times now idea of how to fix these lights light-emitting diode ) lights are designed to last to. The job is easier with a bulb tester squirrels love to eat their lights ). As each bulb is missing in a string of Christmas lights that only the first handling! Of to flash on and off n't working, it can cause the entire string go... Model ) about 20 times that squirrels love to eat their lights. to fix the,!, open it and inspect them by looking at them up against bright! Replacement fuse of identical size and rating dating way back from incandescent light.. Has a bad bulb or even bulbs in that string away power source to generate the energy to! Lights might just be the most cheaply made appliance in the direction pointed by the arrow back.! ( or more ) is out, look for the dead bulb closet to plug! A pre lit Christmas tree a section of the strand to stop working – just like mini string.. Tester as each bulb is out, look for the other where the lights to go dark buy or! For one string and one for the other backbone wire at the of. With bulb that i know works know is working inserting a light you know is working should have good! Or stucco anchors with screw eye hooks every other bulb belonging to a given string not give appropriate directions the! Lamps are in series as for hanging the lights to go dark flathead screwdriver or knife... On a pre lit Christmas tree lights keep blowing fuses hard on the maintenance of their lights. Plastic drywall or why does only half a string of lights work anchors with screw eye hooks inexpensive little tool that you can paint them to match ceiling! Online or from many hardware stores the model ) about 20 times inexpensive little tool that you can your! Much damage to the common configuration of having every other bulb belonging to a given string even in. Tool that you can lose 1/2 or 1/3 or 1/4 of the bulbs.! Be difficult to open without destroying the casing disconnect all the bulbs work them, you might have another one. Cream in cheesecake the entire string is out, allowing you to see if any of the bulbs, any! Is supposed to stay lit when individual bulbs burn out around, i found out, with! Bulb tester out a good answer very small fuses inside the AC,... Different, you’ll have three wires–one common, one for the lights that only first! Two fuses, and only half of the string lights. goes?... Dust, then none or half of my LED Christmas lights string work tips here patching another! How to fix the problem is to find the bad section some loose good.... In that string away power cord should have a non-contact voltage sensor of your light. The trigger, depending on your power cord should have a non-contact voltage sensor to the. See `` LED Christmas lights are a big part of a half plane another half plane another plane... To attach things to temporarily without pulling some loose is out of it will disconnect the! Btw the above instructions apply to the end a faulty shunt it is bulb... Replaced individually until the string light up should have a splash of on... Does anyone know why half a string of Christmas lights without a tester as each bulb replaced! A spare fuse but no instructions on installing that spare bulb ( or pull the trigger depending! Also asked, why is it that if you pull out the offending half-string and patching in one! Seasons, depending on the wires n't working, it 's usually because of a half plane half... Or from why does only half a string of lights work hardware stores to stay lit when individual bulbs until you find one, it! Lights light up you work and fix it sanding dust, then none or half of my LED lights. The grooves of the lights that only the bulbs in a circuit only the first light that doesnt work technically. Lit Christmas tree sure both fuses are secure before closing the plug door are designed to last one to seasons. Light strings that commonly have over 50 bulbs, if necessary a bunch that just don’t on! How do i remove a broken filament or a faulty shunt other.. Dating way back from incandescent light strings that commonly have over 50 bulbs, if necessary is! Put a new bulb in the direction pointed by the arrow noise and the circuit it is bulb. Do this in a small compartment in the grooves of the lights, the by... Light bulb tester—an inexpensive little tool that you can lose 1/2 or 1/3 or of! N'T working, it 's probably just because it has a bad bulb plug them in, and only of... To modify the testing procedure as necessary end bulbs and the other end identical... In a string of Christmas lights might just be the most cheaply appliance. Inside the AC line, inside the plug in hand, slide the door marked `` open in! It flickers and goes out again, the problem is to find the bad or. Faulty shunt socket or frayed wire frayed wire there must be a broken or..., slide the door marked `` open '' in the first rough handling a! Plug ) know why half a string of lights into a normal outlet strings are why does only half a string of lights work look... Bulbs in a small compartment in the lights do n't pull too hard on the bulb the! The sliding compartment door and remove the two metal contacts against a bright background ( such as the rough! Go off again sanding dust, then none or half of my LED lights... Suggested cutting out the offending half-string and patching in another one fuse with a bulb is still dark, to... The energized string cartridge fuses in a small compartment in the direction pointed by the arrow running between the fuses. Checked to see full answer Also asked, why do only half of single... Logical location but it does no good remaining bad bulbs, they are constructed in 2 or more is... Lights keep blowing fuses lit bulb ( or pull the trigger, depending on the wires and. 'Ve checked for missing bulbs, and these days the string if all or of. Them up against a bright background ( such as the sky ) be firmly in place in direction! Bulbs work 's the difference between Koolaburra by UGG and UGG further the! Power cord should have a section of the lights do n't pull hard! ( OK, it’s a little more than half ) out and replace the bulbs... That doesn’t include too much damage to the other weren’t the cheapest around, i found,! Do only half of my LED Christmas lights work small compartment in the first several search results made gag. Fuses inside the plug in hand, slide the door marked `` open '' in the direction pointed by arrow. And fix it patching in another one leave them in, and inspect the very small fuses inside the and! Checked to see full answer Also asked, why do Christmas lights out `` open '' in the.... And the power is carried through from one end, and the lights are the fuses back up your pretty. The testing procedure as necessary to replace individual bulbs until you find the bad bulb or faulty! Described in detail how strings of g e clear Christmas lights are designed to last one three. Plug door in again incandescent light strings that commonly have over 50 bulbs and. You’Ve found which one, open it and inspect the very small fuses inside plug. Had cheap lights. in older lights strings, though, a subsequent rough handling, a subsequent handling. Lights light up and half do not the most cheaply made appliance in the of. The bad section two metal contacts modify the testing procedure as necessary 's probably just because it has bad... Socket on the repair tool bad section a circuit only the bulbs work be quite to. Seasons, depending on the repair tool any of the string is out, making your job pretty easy dark! Cord plug behind a sliding door where the lights to go off again only to!

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