Table of Contents. As you can see, removing a few bulbs isn’t a huge deal but remove too many and risk burning out all the lights. There is an issue with the wiring harness and the copper wire is broken in the string. A big thank you to Ben who sent us these photos of their first-time Christmas lights installation. A bulb tester made for Christmas lights will be a worthwhile purchase. For light strings that commonly have over 50 bulbs, they are constructed in 2 or more continuous circuits. With one string, exactly half of the LEDs don't light up when plugged into the AC. If the strand lights, great, you have solved the problem. With a little troubleshooting, you may find that it's a simple fix, and you can enjoy your beautiful tree for another holiday season. Like I do every year, I got work with my Light Keeper Pro.If you have a pre-lit tree and don’t have a Light Keeper Pro, you should get one now.It has saved so many lights over the years. December 1 each year, I plug them in, and set the timer for dusk to 8 hours later. Start with the first unlit bulb and work your way down, wiggling them to check for looseness. Its usually a split string with half the lights on series on one leg and half the lights in series on the other leg. If not, you must remove the new bulb, plug in the original bulb and continue to the second socket. Note, if you’ve run way too many lights in series you may have permanently damaged your light sets. Learning how to change a fuse in Christmas lights is simple, but if your strand of lights does not appear to have accessible fuses, move on to step 4. (2) If the bulb does not light up, but all of the other lights in the … Often, a Christmas light tester is the easiest way to locate the problem area. How to Fix Christmas Lights that are Not Working. Application: Troubleshoot Christmas Light Problems. Bulb lens cracked or significantly damaged If you have a problem with a set of three-wire Christmas lights that aren’t working, I hope this solution is helpful. My understanding is that Christmas light strings like these are often two independent circuits, with fuses built into the plugs at either end. ELI5: Why have the bulbs gone black on half the strand of my "christmas" lights? Check the Fuses 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). The traditional color and design leave plenty Read More, Get This Look: Wrapping Trees with Lights. I have two strands connected and hung over my bed because I'm an unrepentant hipster and/or deadbeat hippie. If you have any experience with incandescent Christmas lights, you’ll know they only last a … Using your fingernail or a pencil, flick each light bulb carefully while the strand is … To test this idea, unplug one bulb on one end and half the lights go out. By Alvin Alexander. Issues with Rope Lights My rope light has a section that has gone out. What if the entire string of lights goes out? If you find one, open it and inspect the very small fuses inside the plug. We couldn’t fix it by replacing the bulb right where the light string stopped working, so I looked into it and found this helpful (but a little too technical) article. It's time consuming putting all new lights on, but it's a lot less $ than going out and buying all new deer, and it's a good way to recycle also. 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. The keys for me were (a) knowing that the bulbs could be in one of those three states, and (b) just taking the time to test and replace all the bad bulbs until the strand started working again. The solution:  Check the rating of the light string and don’t plug in more lights than the manufacturer specifies. One series leg has a bad bulb that took out the rest. LED bulbs do last a long time, but from time to time one does fail to light up. If it is the second then start at light 36 for a 70 light string. Incandescent Christmas tree lights (aka mini lights) are wired in series so if your lights go partially out you have one of three issues: 1. This happens sometimes when the bulbs are “smoked”. Fixing strings of Christmas tree lights is surprisingly easy. If this is the problem with your light string, the best solution is to begin again with a new string of lights. The simple tools are inexpensive and a good addition to any holiday light collection. Anyway, I did manage to get some lights working with the Light Keeper Pro and I replaced as many burned out lights as I had replacements on hand. The whole string used to work, and it's only about a year or two old. We didn’t have any special tools for this, so what we did was just start at the first bulb that wasn’t working, and then we tested every other bulb in the strand after it by removing it and testing it with another strand. I knew I wasn’t going to get every light working on … Bulb still intact, but fails to light up. Get This Look: Dressing up a porch for Christmas. But don’t lights stay on if a bulb burns out? 2. Or their lights suddenly half go out during installation. We hear this question from folks who are puzzled that their lights worked fine last season but are half out when they pull them out of storage. If you replace the end bulbs and the string of lights still does not work another bulb is the problem. Replacing a Blown Fuse Try this if the entire string goes out. Visually check the part of the light string that is out and replace any smoked bulbs. For first-time homeowners, this project was simple and economical. I assume this bulb was paired with the first bulb in the strand that was out, but I have no way of knowing that for sure. Unplug one bulb on the other end and the other half will go out. If the bulb lights up, remove it and place it in the "Working" bowl. Merry Christmas and Recycling + Toys for Tots, Get This Look: Classic Incandescent Red, Green, and White Bulbs. If so, the problem is solved. It does not have the same features as the Light Keeper, but will help out and is cheaper than a new set of lights. If half the string is out, look for the dead bulb closet to the end. Remove corrosion from the plug prongs and plug the string in again. 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. A light bulb has come out of its socket or is half out of its socket and it has brought down the circuit. How to Fix Half a String of Christmas Lights That Are Out Step 1. This guide is about pre-lit Christmas tree lights not working. Starting with a classic design made the project quick and easy. Skill Level: Beginner to Intermediate. We found several bulbs that were in one of three states: I replaced about four bulbs until I replaced one light bulb and the entire strand came to life. Thank you for Read More, We love this traditional installation of classic C9 Christmas light bulbs in white, green, and red. Depends on the extent of the outdoor lighting that will be installed, however this electrical wiring project is best performed by a Licensed Electrical Contractor. Perhaps half-strings would be appropriate for some places. If half a strand is working and the other half is not, you probably have a loose or broken bulb. They Last A Lot Longer LED lights can last up to 10 years before they stop working, some people even claim they can last 20 years. The fuse is a small, glass cylinder with metal-plated ends and an internal metal filament. If all the bulbs are seated and none are smoked, more than likely there is an issue with the actually wiring of the Christmas light string. Open the sliding compartment door and remove the fuse (s). While Christmas tree lights come in many shapes and colors, there are some basic guidelines to follow so your tree lights work properly. There should be two. Either a bulb isn't making good contact in its socket (most likely on a string that hasn't been used much) or a shunt is not working. Christmas tree light repair is actually very simple. We love and appreciate the simplicity of this customer’s Christmas porch. As soon as you find a wire between the lights that no longer has voltage detected the light prior is likely the light that is fault. Gently press each bulb into the socket; even if it looks connected, the filaments from a bulb may not be connecting with the components in the socket. A fine Read More. I have been working with a volunteer team to put up thousands of LED Christmas lights and incandescent lights. As long as the bulb lens has not been cracked or broken, then the light set will continue to illuminate with the exception of any individual bulbs that are not working. Just now, they were all lit up then one strand flickered and went out. With less power used, we can afford to be less interested in turning lights on and off, and more interested in lighting areas that central bulbs do not reach well. The Fuse of the Christmas Lights Explained. Take a strand of 100 white wire lights and replace the old lights. How Solar Christmas/String Lights Work: Sunlight is captured via solar panel and immediately transferred to a battery to be stored. Don’t take out and reinsert each bulb because that’s hard on fingers and will more than likely create larger problems. And who doesn’t love a wiener dog inflatable? Repurposing Christmas lights after the Season! Check the strand in your hands for bad bulbs if the rest do light up. If you have lights on your wire lawn deer that stop working, don't toss the deer in the garbage, just change out the lights. The light strings that are working at the end of the season are coiled up and placed in totes and placed in a storage shed. Purchasing new sets may be necessary if replacing bulbs don’t work for you. This year, however, a bunch of the bulbs did not light up, right in the middle of them all -- as my wife quickly informed me. If you can find it in 5 minutes or less, fix it by using a replacement bulb cannibalized or a spare, otherwise, throw it … If a bulb is missing in a circuit only the bulbs in series of it will go out. If the entire string of lights is out, the issue could be that it is on a single circuit and is due to one of the issues above or the fuse for the entire string might be out. ASIN=B003EEM9HG I don’t own any special tools, so the solution isn’t very elegant, but by going through the light strand and replacing all of the bad bulbs, I eventually hit on the one (or two) bulbs that were causing the whole strand to fail. Including today’s run, 9,995 (that’s NINE THOUSAND NINE HUNDRED NINETY-FIVE) pounds of lights were recycled and instead of ending up in a landfill. Nothing is more aggravating than carefully decorating your tree only to discover that the lights won't work. The 12-inch spacing makes this combination a good fit for larger trees. If not… Damage to the wiring can be caused by age, squirrels, pulling and tugging on the light strings during take-down at the end of Season. 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. The solution:  Visually inspect each bulb in the part of the Christmas light string that is out. Step 2. It seemed like a lot of work initially, but I found the problem bulbs in less than twenty minutes. First, … Since the lights look equally well installed Read More, We just made our last recycling run of 2020. When you plug in the tree and find the prelit Christmas tree lights not working, don't give up hope. These socket/bulb contacts are … The rating of the light string was exceeded and the bulbs blew out the wire at the base of each bulb that is supposed to conduct electricity. A light bulb has come out of its socket or is half out of its socket and it has brought down the circuit. Plug in the strand and see if it, too, lights up. You plug the tree in but not all the lights are shining. For us, the “pair” part was a key, and through a little trial and error, we found out that the bulb where the light strand stopped working had indeed burned out, but it was also joined up with a second bulb further down the line that had also gone out. When working correctly, there is a wire shunt in the string that bypasses each of the individual light … Six hours to find the dud Christmas light : Metro.co.uk. Usually 2 or 3 AA rechargeable batteries located inside the solar panel box. A cheaper tool to aid in repairing Christmas lights. That’s how you can lose 1/2 or 1/3 or 1/4 of the string. As I am lazy, I keep our outdoor Christmas lights up all year. This can be a frustrating situation, especially if the tree is only 2-3 years old. Incandescent Christmas tree lights (aka mini lights) are wired in series so if your lights go partially out you have one of three issues: 1. A blown fuse will turn the entire string … This is assuming that the first half of the light string is not working. Using a 100-foot C9 cord and 100 traditional incandescent (glass) bulbs. Yes, as a general rule of thumb, a small wire at the base of each glass bulb will continue to conduct electricity if the filament “burns out” but if the bulb is actually out of its socket, the lights don’t actually stay on. Christmas Light Repair: Check the Fuse. Inspecting it closer, I found it was half a string, precisely. To troubleshoot in this scenario, start by swapping the first bulb in the strand with a new bulb, preferably one you know works, such as a borrowed bulb from a working strand of lights. When it's time to break out the Christmas lights, you may notice a few bulbs have gone dim. Last updated: December 13, 2020, How to fix a three-wire Christmas light string, this helpful (but a little too technical) article, How to install Apache with the mod_proxy module, Christmas gift exchange (part of an ongoing dream series), Story about Lakers’ coach Luke Walton (and mindfulness and meditation), The Rocky Mountains, Longmont, Colorado, December 31, 2020, Rocky Mountain National Park, Jan. 3, 2018, 12,000 feet up in Rocky Mountain National Park (Estes Park area), Two moose in Rocky Mountain National Park, The bulb didn’t work, but the rest of the light strand worked, The bulb didn’t work, and it caused the rest of the light strand to fail. As always, Draper deliver a tool at a good price for assisting with bulb repair and replacement. Use a clean cloth or tack cloth to wipe away any sanding dust, then try plugging in the lights again. 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. Yay! (1) Take a bulb from the "Untested" bowl and plug it into the STS. Once we replaced both bulbs, the entire light strand lit up. Various applications that use "Christmas lights… Most LED lights will survive the fall and still work. We love this customer project. Christmas lights wired in series spread 120 volts coming out of the plug across all the lights. Repairing these lights won't be easy, but with a little determination and know-how, it can be done. We couldn’t fix it by replacing the bulb right where the light string stopped working, so I looked into it and found this helpful (but a little too technical) article. 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. The twinkling lights of your artificial Christmas tree add to the warm holiday ambiance in your home. Keep checking for voltage between the lights. Each light that is removed increases the voltage to all the remaining bulbs. Here is the simple materials list for this project. The short version of that article is that the way these light strands work is that the light bulbs are connected in series and in parallel, and the most important thing to know is that the bulbs seem to be connected in pairs. 3. Once the sun sets, the battery stops charging and a light detector automatically turns the string lights on. The solution See our blog about the entire string doing down for more information and troubleshooting tips. ... there is a chance the shunt wires in the light string are faulty. 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