How do you fix pre lit christmas tree lights


Top Part of Pre-lit Tree Not Working?

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Question: Top Part of Pre-lit Tree Not Working?

sandrap

January 21, 2018

I have a three part Christmas tree. All the bulbs on the top portion have a black shadow in them and do not light up. I replaced a couple of bulbs, but nothing happened.

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They are all not lighting. What do I do to have the whole tree lit. I bought it in December 2015.

Answers

Judy
Gold Post Medal for All Time! 677 Posts

January 21, 20180 found this helpful

Best Answer

Contact the manufacturer. There may be a specific type of bulb you must use.

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Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

Question: Half Section of Pre-lit Tree Lights Out?

conniendon

February 15, 2021

The bottom part of the top piece of my pre-lit tree went out. These lights are wired in parallel, so if one goes out, the others stay lit. The whole top section is on the same strand and I've checked every single bulb in the bottom part that is out and they are all securely in the socket. I've even checked the fuses, although the top of the strand is still lit.

If I remove one bulb, the whole strand goes out. If I replace a bulb in the section that is out with one I've already tested, the section still stays dark. It doesn't make sense. I don't know what else to do. Any suggestions?

 

Answers

cybergrannie
Gold Feedback Medal for All Time! 949 Feedbacks

February 15, 20210 found this helpful

Best Answer

You say that you have checked the fuses but sometimes these are difficult to judge whether they are working correctly.
Be sure you are checking all of the fuses - check your instructions.

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I have read lots of this type question and it seems to get more confusing and not much solving.

I would say to find your instructions/tag on tree/register receipt and contact the manufacturer as they can tell you more about your lighting than anyone. Companies are usually very helpful and may even replace the lights for free.
If you cannot find the manufacturer name then try to remember the store where purchased. If you have only had it for less than 2-3 years the store will probably help you.

You can also ask your questions on some of the forums but I could not find very many listed.
askinglot.com/where-are-the-fuses-on-a-pre-lit...
talk.newagtalk.com/.../forum-view.asp?fid=2
www.diychatroom.com/.../
blog.treetopia.com/.../

www.christmaslightsetc.com/. ../Troubleshooting-Prelit-Christmas...

Sorry, this is all that I can suggest but usually someone on the forums can help.

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Question: Top Part of Pre-lit Tree Not Lighting Up?

mcarey

November 19, 2018

The top section of my pre lit Christmas tree will not light up. When I take the top section off the tree and plug it in by itself all the lights light up.

I do not know why the top part will not come on when the rest of the tree works perfectly?

Answers

Pghgirl40
Bronze Feedback Medal for All Time! 196 Feedbacks

November 19, 20180 found this helpful

It sounds like something is gumming up the connection. Did you check the connection to make sure it looks OK?

I wouldn't monkey with it, but if you see something like a piece of tinsel stuck, that would be OK to remove.

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Who made it? Call the company and ask for their guidance. Sometimes they have great tips that only they would know about to fix.

Also ask if it is under warranty!! Never know!! Wishing you an easy fix!!!

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Judy
Gold Post Medal for All Time! 677 Posts

November 19, 20180 found this helpful

Make sure the wires arent getting twisted when you put them back on the tree.

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15mhhm15
Diamond Post Medal for All Time! 1,298 Posts

November 24, 20180 found this helpful

You may want to check the manual to see if there are any troubleshooting for the issue you're experiencing.

Example: www.christmaslightsetc.com/.../Troubleshooting-Prelit-Christmas...

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Or, contact the manufacture.
If this is a new tree, you can also exchange or return to deal with less of a hassle too.

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hlmax

December 18, 20210 found this helpful

A late reply, but someone searching for the same problem will get a correct answer anyways.
There is a plug on the pole, the lights' plug got disconnected from pole with handing. The plug is very discrete and blends into the pole. Look for it and re-plug the lights into the pole.

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Question: Middle and Top of Pre-lit Tree Not Working?

stilltheirmom1

December 9, 2018

I have a 3 part 7.5' pre lit LED Christmas tree. It is 2 yrs old. The bottom piece lights up and switches perfectly fine between the white and multi colored lights, however the entire middle section and top sections will not light up at all.

They attach to one another with the power pole that runs thru the middle of the tree. The power pole is in 3 parts, you set one section of tree/power pole combo on top of the other to build the tree.

Answers

Judy
Gold Post Medal for All Time! 677 Posts

December 9, 20180 found this helpful

You might have a burnt out fuse. The problem with pre-lit trees is they dont last long. People give them away on Freecycle all the time.

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It might be a good fix to just strong some lights over the ones that dont work.

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Pre-lit Christmas Tree Lights Not Working

You plug the tree in but not all the lights are shining. This can be a frustrating situation, especially if the tree is only 2-3 years old. Often, a Christmas light tester is the easiest way to locate the problem area. This page is about pre-lit Christmas tree lights not working.

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Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

Question: Malfunctioning Pre-lit Tree?

November 25, 2014

I need some electrical help! I am trying to replace burnt out bulbs on my tree. However with one row of branches, every time I replace a bulb, the whole branch turns off. I have even tried putting the old burnt bulb back in, the one that still kept the whole strand on the branch working originally, and it still won't turn the rest of the strand on that particular branch back on :(

I gave up on the one branch and found another burnt out bulb on the branch beside it. Guess what happened when I replaced it? Yup, you guess it, I broke the whole strand on that branch too. I thought it was just a fluke and said I'll just throw that end of the tree up against the wall, but I still didn't learn. I found one more burnt out bulb on the next branch over... and yup, I broke that strand too.

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Now I'm stuck with 3 dark branches and it stands out, badly. Can anyone tell me what I'm doing wrong? Please help! This tree is for a unit I work on at the hospital. My good deed is driving me crazy :p

By SincerelyReallyFrustrated

Answers

Matthew T.

December 1, 20143 found this helpful

Best Answer

I'm not an expert, but I was having a similar issue and finally broke down and bought a Light Keeper Pro from Home Depot for $20. Problem solved! Very easy to use, and paid for itself within 5 minutes. Now I'm going back to all my old decorations that use mini lights and fixing them, too.
Hope it helps. Good luck!

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rkaelin85

December 2, 20141 found this helpful

Best Answer

I saw the answer above and purchase the Light Keeper Pro from Home Depot for $20+tax. Just as above Problem solved! Very easy to use, and paid for itself within 5 minutes.

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There were 9 bulbs out with 3 burnt shunts (keeping the string dead). It would have taken an hour to solve if I was able to get them all out of the string. Wow.

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Question: Pre-lit Christmas Tree Bulbs Not Working?

January 2, 2012

My pre-lit tree is 2 years old; one section is out and it seems like almost every bulb has blown at once. What causes that?

By Carmine


Answers

Best Answer

It may be a fuse in the light set. They have a fuse in the line. Check what kind and most drugstores and walmart sale them. Sometimes you can get one out of another old set of lights.

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Pat Phillips

January 9, 20120 found this helpful

Best Answer

It is very important to make certain that none of the bulbs are loose. That is usually the problem. They can become loosened in shipment or just getting them out of the box and putting them up.

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If you have ONE bad bulb and it's still in tight, the others will remain lit, and of course check the fuses in the plug, if all else fails. ..

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Question: Lights Not Working on Pre-lit Tree?

December 22, 2014

We bought a pre-lit xmas tree about ten tears ago. We set it up this year and all was well until a week later. We plugged it in and all the lights were out. Any first aid suggestions other than to get another tree?

By Theresa from Chicopee, MA

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Question: Pre-lit Tree Lights Not Working?

The clear lights on the top part of my pre-lit tree are dim. What can I do?

By Anthony from RI

Answers

Best Answer

The little gun zapper worked great and we could only find it at Walgreens. We got most pre-lit lights back on but not all. thanks so much for the info.

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Liston

January 10, 20110 found this helpful

Best Answer

I have a 7ft GE pre-lit tree that I bought in November '10. One row of lights went out just after Christmas. Discovered one of the non-replaceable bulbs blew. Lost the warranty card so I paid GE $15 for a new section of lights. Figured since I'm basically out of warranty, I would try pulling the white bulb before trying to rewrap the wires (Read some of the horror stories below).

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Pulled the bulb and white base, swapped the bulb with one from a green, replacable base and plugged it back in. The tree is as good as new. Does anyone know if there is a difference between the replaceable and non-replaceable bulbs, besides the base? Besides being more difficult to get out of the socket, I see no difference in the bulb.

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JoAT

January 31, 20120 found this helpful

Best Answer

I was just told that the 'non-replaceable' bulb has a built in fuse. When the fuse blows, they purposely don't want you to be able to remove the bulb and white base for safety reasons. That's apparently why they say replace the whole string.

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That said, it seems to me that the bulb could blow without the fuse blowing. I'm assuming that the bulb in the white socket is the same as all the others. (True?). But you can't replace that bulb if you can't get the white base out of socket! Some folks have talked about forcing the base out and replacing the bulb that way, but I think you're asking for safety issues.... 'you're playing with fire'... maybe literally! :) Any time you try to bypass or play with a designed safety mechanism you're asking for trouble. You're in an unknown area where you are using something in a way which it was not designed to be used.

Bottom line, to me at least, is that all these light sets on prelit trees (and loose strings too) are not meant to last forever. Some, maybe all, of these light strings have labels that say they are only to be used for 90 days! So putting an unremoveable fused base in a light string serves the purpose of making sure that these lights are not used 'forever' and are taken out of service after a while: Either when the fuse blows or when the bulb in that base burns out.

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Anonymous

November 24, 20122 found this helpful

Best Answer

I came across this issue and read all the online info. Found myself in a similar situation, out of warranty and with dead bulbs. Bought a light keeper pro with no improvement. Decided to try to pull the white ringed bulbs in desperation. First after unpluging the tree, I took a heat gun (a hair dryer would probably work just as well or better as I needed to be careful not to melt the actual tree) the soften the socket area slightly.

Once the white ring socket was warm I twisted the clearly burnt up bulb off. I was able to wedge a plexiglass etching tool in between the bulb socket and the base. Then a narrow/ thin needle nose was manipulated into the same space. A little tug and it was out damage free. I then inserted a new replacement bulb into the base and reinserted the white ring. Did this x 2 and my tree is fully operational! I think the heat made a big difference in making things more malleable.

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Question: Trouble Connecting Lights on a Pre-lit Christmas Tree?

Reba

December 7, 2009

No one seemed to understand the problem with my pre-lit Christmas tree. Anyway my tree has a main hot wire that runs up the center of the tree. The tree also has lots of plug-in ones that will connect to the main wire on each section, then the other plug-ins that will connect to each other so each section will burn.

My problem is getting the main one plugged in the right socket so I can work my way up the tree. All fuses and lights are OK. Will someone give me some idea how to get all these plugged in? Or tell me which one plugs to the main hot wire on each section? There are no color codes on the plug-in. Thanks

By Reba from Bristol

Answers

Joan
Bronze Feedback Medal for All Time! 186 Feedbacks

December 7, 20090 found this helpful

Best Answer

When I assemble my tree, I always plug in the bottom section, that way as I put each additional tier on it, I can plug it in making sure that each section is plugged into the right place. I hope this is what I understood your problem to be.

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Best Answer

I did what redhatterb suggested, but then I made a diagram showing which branch numbers get plugged into the tree plug and which get plugged into the previous branch's plug. I keep this diagram in my tree storage container in a plastic sleeve. It's made putting the tree up each year much easier.

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Question: Pre-lit Christmas Tree Lights Keep Going Off and On?

November 16, 2012

The top section of my newly bought tree keeps going on and off. It seems when they are on and I try to adjust the branches the lights go off. Then when they go on again they stay on indefinitely as long as I don't touch the branches. Any help would be greatly appreciated.

By Celeste O.

Answers

Anthony G.

December 13, 20141 found this helpful

Best Answer

While it is common to hear the term 'short' in the wiring, it is often used incorrectly by laymen and when they mean exactly the opposite of a short; a short would be a connection in a place it is not intended, and would probably blow out fuses, circuit breakers before it causes a fire. While it may help pass over the problem quickly with afternoon tea and biscuits, in a technical or troubleshooting discussion, it should not be used incorrectly. In this instance, nothing said indicates a short. Rather, it sounds like an opening in the wiring or a poor connection at a junction. Wiggling the wires should help you find the area with the poor or open connection.

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Question: Pre-lit Tree Won't Light?

So I have a GE 7.5ft pre lit Christmas tree. It has a foot pedal to control three different settings. What is the foot pedal connector part called? The tree is not lighting up at all. I have replaced all the bulbs and even replaced the connector that the lights plug into.

But when I hit the foot pedal to turn it on/off I'm not hearing a click. So needless to say I believe the foot pedal portion needs to be replaced, but can not find anything online. I really don't want to cut them off and replace them if I don't have to.

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Question: Prelit Christmas Tree Not Working?

What if there is no white socket light?


Answers

reidbarter

November 20, 20160 found this helpful

Cannot find a white socket...What do I do now

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Question: Some Lights Out on Pre-lit Tree?

December 18, 2011

I have a pre-lit tree and noticed that some of the lights are out and have turned black. Does that mean that I need to replace that strand? Can you do that on these?

By pj

Answers

Joan
Bronze Feedback Medal for All Time! 186 Feedbacks

December 18, 20110 found this helpful

Best Answer

I don't know why the bulbs have turned black, or do you just mean they don't light up. If some of them have just burned out, you should be able to replace the bulb. Anyway any pre lit tree that I have had have been that way. I don't know if you can replace the whole string or not, to me they look like they are attached to the tree in places. I kind of decided that when this happens to mine, I will just pretend it is one that didn't come with lights and string strings of new lights on it. The pre lit trees are kind of expensive to replace.

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Question: Problems Getting Pre-lit Tree to Light?

Is there a certain way to plug pre-lit Christmas trees in.

By liz from Idaho


Answers

Best Answer

I'm beginning to hate my pre-lit tree 8). But this year we bought one of those 'guns' that you can use to 'restart' the lights. They have helped with about half of the un-lit strands. It's called a "Light Keeper Pro". Can't remember the cost, but well worth it! Found it at the big box store.

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Question: Some Lights Out on Pre-lit Tree?

Our pre-lit "Barcana" artificial Xmas tree is 10 years old, and has functioned very well until this year. I just noticed that a section of the lower part of the tree doesn't light, although the rest of the tree does. I also saw that almost all the mini-bulbs in that section are burned out. I replaced maybe 30 of the bulbs, using the correct 2.5 volt bulbs. On the last one, the section lit up, but it was abnormally bright, lasted maybe 3 seconds, then went out.

Most of the new replacement bulbs were burned out. What seems to be happening is, that section of lights is drawing too much current for the bulbs, but not enough to burn the fuse; i.e., the bulbs are acting like fuses. Anyone know what is happening here, and what I can do to fix it?

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Question: Replacing a Strand of Lights on Pre-lit Tree?

Alice

December 6, 2015

My dog chewed the wire on the bottom strand of lights on our prelit tree. Can we unplug this strand from the one it's connected to and replace it with a new strand?


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Question: Christmas Tree Lights Not Working?

December 10, 2014

Christmas tree light manufacturers claim that if one light goes out the rest stay lit, this is not true. I have at least 20 sets with this claim that don't work including 2 prelit trees, why?

By scw

Answers

Glammom2

December 12, 20141 found this helpful

Best Answer

Buy the "Light Keeper Pro!" I thought it first it was a gimmick, but it works fantastically. It's like a little gun and you shoot it into the socket of light strand - it actually clears the current. It is a must especially with these pre-lit Christmas trees. We found ours at English gardens. But check online just Google and you'll be able to find other retailers that sell it ... sometimes drugstores have it too I would not have pre-lit trees or Christmas lights without it. My husband thought it was a joke, until it cleared out areas of lights not working on our pre-lit tree.

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Question: Pre-Lit Christmas Tree Has a Short?

Sara

January 5, 2010

We have a pre-lit Christmas tree that has worked for years beautifully, but this year the whole tree has been going out on us. The first time it happened we figured it was the main 5 amp fuse. We bought another and we were right, it lit again beautifully, but only for 1 day.

We again put in a new fuse and have found that the tree will light for a few hours and then everything goes off. As soon as I change the main fuse it goes on again. Obviously we must have some sort of short somewhere but how do I find it?

By Sara from NJ

Answers

kjablue

January 5, 20100 found this helpful

Best Answer

First and foremost, if I were you, I'd check with an electrician and make absolutely positive that your tree isn't going to short out and maybe cause a fire. If it were me, I'd trash the tree and find a new one. Sorry but the cost of a new tree is nothing compared to what the cost would be if it caused even a small fire. I once had a toaster short out and I was standing maybe 10 feet away. It scorched a spot on my wall about a foot wide and almost twice that up the wall before I could get to the electrical box and flip switches which took probably less than 90 seconds.

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How to fix a garland - Lifehacker

December 28, 2018LikbezDo it yourself

Do not rush to throw away old lights and run to the store for new ones.

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As a rule, garlands have a rather simple design and typical faults that are easy to fix even without special skills and tools. But in some cases, you may need a soldering iron and a multimeter. Therefore, you may still have to turn to a familiar radio amateur.

The cause of a garland malfunction, like any electrical engineering, is the failure of one or more circuit elements. Everything is usually repaired by replacing a faulty part, which can be found in another garland or some kind of broken equipment.

Careless handling of the electric garland can result in electric shock or damage to the device. You perform all actions at your own peril and risk. Lifehacker does not bear any responsibility.

How a garland is arranged

samelectrik.ru

All electric garlands are arranged in the same way. In older samples, these are light bulbs connected in one circuit that light up or flash when connected to the network. In modern ones, a controller is added to glow in different modes and the bulbs can be replaced by LEDs.

Usually, old or decorative garlands have two wires, or to be more precise, one, which is connected in the form of a ring and twisted. Modern models have five wires. Four LEDs are located - these are branches. The fifth - general - remains empty.

At the far end, they all connect together, and their other ends go into a small box with a button and a plug.

Inside the box is a controller - a small board that contains a chip for creating effects and a few parts. A diode bridge, a capacitor, a pair of resistors and four (or two) thyristors that control the glow of each of the branches with lights of the same color.

In the photo on the left, the four black parts are thyristors. The blue one next to it is a capacitor, small light-colored edges are resistors, behind the scarves with a microcircuit are a diode and a button.

In the photo on the right is the reverse side of the board, two wires from the bottom - mains power, a row of wires from the top - lines of branches of each color and a common one.

How to fix a garland if it does not turn on

Cause 1. Broken power wire

Thin wires are often damaged by breaking at the plug or coming off the board inside the control box.

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How to fix

Move the wire at the plug and next to the box. If the garland works, then the problem has been found and all that remains is to replace the cable by disassembling the controller unit.

If not, troubleshooting should start with the power cable. Open the cover, unsolder the two wires going to the board and replace them with a working wire with a plug.

If there is no visible damage to the board, this should help and the garland will work. Otherwise, the problem must be sought in the power diodes.

Cause 2. Burnt diode bridge

Power surges can destroy one or more diodes of the diode bridge. As a result, the board will not be powered and the garland will not turn on.

How to fix

Check all diodes with a multimeter and replace the non-working ones with good ones. Details can be taken from another garland or found suitable at the denomination indicated on the body.

How to fix a garland if one of the colors does not work

Cause 1. An open circuit in one of the branches

Due to poor quality, the wires can break off either at the board itself or somewhere between the LEDs. In both cases, the circuit opens and the LEDs stop glowing.

How to fix

Separate the dead branch from the rest and carefully inspect the wire to check its integrity. If it has moved away from the board, strip it, re-solder it and fix it with hot glue for reliability.

If there is damage on the cable between the LEDs, strip the ends of the wire and solder or twist them together, then insulate with heat shrink or electrical tape.

Cause 2. Burnt LED

Low-quality LEDs often light up. With a serial connection, this means the same open circuit as in the previous case.

How to fix

Finding a broken LED or light bulb in a series circuit is more difficult. One option is to ring each element with a multimeter.

You can also make a jumper of two needles connected by a wire, and alternately close the incoming and outgoing wires on each LED with them. The garland must be turned on. The LED, when closed, all the lights of the branch will light up, and will be defective.

To restore the circuit, a non-working LED can either be replaced, or simply removed and connected the ends of the wires to each other, insulating them. Without consequences, you can throw away up to five LEDs in one branch.

Cause 3. Thyristor failure

If the control thyristor of one of the lines fails, all LEDs of the same color stop working.

How to fix

You can fix the breakdown only by replacing the thyristor with a working one from another garland or a suitable one at face value. To check, you need to use a multimeter or resort to the following method.

Identify the wire of the non-working branch and swap with one of the good ones by unsoldering or cutting and connecting with a twist. If the defective line then works, then the problem is in the thyristor.

The wires that go to the thyristors are usually arranged in a row at one of the edges of the board. On the opposite there will be only two wires - this is power. It's hard to confuse them.

How to fix a garland if one of the colors is dimly lit

Cause 1. Branch wire tear

Due to a break in the wire inside the wire, contact is broken in the circuit of one of the branches. The current still passes, but it is no longer enough to light all the LEDs.

How to fix

Carefully inspect the entire branch. Move the wires at the board and each of the LEDs of the switched on garland to determine the damaged place. As soon as you find it, all the LEDs will light up in full force. Next, it remains to restore normal contact by soldering the wire or stripping and connecting it.

Cause 2. Broken thyristor

Due to a faulty thyristor, one of the lines may not have enough current for the normal operation of all LEDs.

How to fix

This breakdown is treated only by replacing the thyristor with another one. You can check the performance with a multimeter, or by transferring the wire to one of the working lines.

How to fix the garland if it flashes randomly in any mode

Cause 1. Failure of the capacitor

Drying, leaking or swelling of the electrolytic capacitor causes malfunctions of the controller.

How to fix

Carefully inspect the capacitor. If it is swollen, darkened, or electrolyte streaks are visible on it, then a replacement is necessary. Examine the case to find out the rating and voltage, and then find an analogue with parameters no less than the original ones. Carefully unsolder the old capacitor and install a new one, observing the polarity.

Cause 2. Broken resistor

Burnt resistors also cause controller malfunction and unstable lighting modes.

How to fix

Check the resistance of the resistors with a multimeter and replace the faulty ones with working ones of the same rating. If visually the parts are intact, it is still better to replace them to rule out a malfunction.

How to fix the garland if all LEDs are on at the same time and do not blink

Cause 1.

Chip failure

Damage to the controller chip causes all LEDs to light simultaneously and without blinking. The modes stop working, and when you press the button, the lights turn on and go out when you release it.

How to fix

Unfortunately, garlands with this problem cannot be repaired. A working controller from another garland will not work. It is designed for a different number of LEDs and resistance, thyristor current. Therefore, at best it will not work, and at worst it will cause a short circuit.

Read also ⚡️🧐

  • 18 unusual Christmas garlands from AliExpress
  • How to make DIY Christmas garlands: 11 cool ideas
  • 10 DIY Christmas decorations worth making
  • What to give for the New Year - 2023: only the best ideas

How to fix a garland if the wires come off or the light bulb burns out

If on the eve of the New Year you find out that the old Christmas tree garland doesn't work, for example, one color doesn't light up, don't rush to buy a new one. there is a chance to repair the damage with your own hands. Fortunately, the device of these Christmas tree lights is not too complicated, and if you carefully check all possible faults, you can make repairs at home. Next, we will tell the readers of the Sam Electrician website how to fix the garland if the contact wires come off in it, the light bulb burns out, or the modes do not switch.

  • One or more colors off
  • Does not light up at all
  • Broken bulbs

One or more colors do not light

One of the most time-consuming breakdowns is the case when one or two colors do not work in the electric garland, for example, only red or yellow and blue, as in the photo below. This indicates that, most likely, the bulbs in the corresponding section have burned out.

To begin with, we still recommend dismantling the switch cover, also known as the control unit, and check the reliability of all connections - contacts soldered to the board. We immediately suggest watching a video lesson from a young master, which clearly shows what to do if the wire from the board breaks:

How to carry out a simple repair of a malfunction?

If everything looks in order, then it is highly likely that the light bulb has burned out. The fact is that modern garlands are designed in such a way that all single-color lamps are connected in series and if any one burns out, the light will go out on the entire electrical branch. To fix the breakage, it is recommended to act as a good old textbook advises: cut the garland in half and ring both sections. Then proceed in the same way with the non-working section: cut by 2 and check again, and so on until the end, as shown in the diagram.

As a result, you will be able to determine which bulb is not working and replace it. We draw your attention to the fact that it is advisable to use this repair method if the electric garland is non-separable, usually Chinese.

To quickly fix the garland with your own hands, you can take a tester and attach needles to its ends instead of probes. With the help of needles, punch through each section of the circuit in series so that the needle passes to the current-carrying core, and look for where the resistance of the section is significantly different. In this way, you can find a breakdown and repair it with less effort.

Old Soviet garlands for the Christmas tree (without box) are more convenient in this regard, because in them, all the lamps are screwed into the cartridges, and you can determine which bulb does not work without a soldering iron and an ohmmeter by elimination - taking a working light source and screwing it into all the cartridges one by one. Another repair method is to use a tester to measure the resistance of each lamp until you find a blown one.

An example of repairing another difficult malfunction:

Why does the Soviet electric garland not work and how can I repair it myself?

Another way to fix a broken electric garland is to check the integrity of the common wire. On the board on one side you will see 5 soldered wires: 4 for the glow of each of the colors and one common. Now, if the common wire breaks, you just need to solder it.

In addition to the light bulb, the reason that one or more colors in the garland does not light up may be a broken wire, which is responsible for just a certain color. This problem most often occurs if there are cats or dogs in the house that chew through the wires while playing. In this case, you need to find the place of damage, re-twist the current-carrying wires and insulate them. It does not hurt to protect the wires from pets after that.

Does not light up at all

If your LED garland does not shine, and you are convinced that it is not the LEDs, then you already need to look at the control unit and the power cord. First, check the integrity of the cord, it may have been interrupted or the contact on the connection to the microcircuit has broken. After that, check how all the contact connections are soldered to the board. For example, in the photo below, one of the wires burned out. If everything is working, then the board has burned out. You can, of course, buy a new garland if this one was cheap Chinese, but if you want to fix the product, now we will tell you how to do it.

Instead of a standing control unit, you can use a starter from a fluorescent lamp at 127 or 220 Volts (the difference is only in the flashing speed of the bulbs). First, check how the LEDs are connected. If it turns out that the extreme elements of the groups are interconnected by anodes, you will have to redo the circuit and connect the LEDs with cathodes. This is due to the fact that for normal operation of the starter, the voltage to the anode must be supplied through a 5-watt resistor with a resistance of 15-20 kOhm. In addition, diodes will also have to be included in the circuit, as shown in the diagram below. Diodes are needed in order to pass through the reverse current of the network. This is how you can remake and thereby fix the LED garland with your own hands at home.

As you can see, you will have to work hard to repair the product, so if the electric garland is Chinese, it is better not to waste time and buy a new one. We talked about how to choose a garland for a Christmas tree in a separate article. By the way, it is recommended to convert it to a starter even if the garland does not blink or does not switch modes and the reason for this is the controller.

Please note that if it is the LED in the Christmas tree diode lamp that burns out, after which the entire section does not light up, you need to solder the serviceable element strictly observing the polarity!

Broken bulbs

If one or more bulbs are broken and you want to repair the product, we recommend that you simply replace the damaged light source with a new one. We draw your attention to the fact that the replacement should be done only when the power is off, so as not to get an electric shock.


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