If electricity is connected to the wrong end of the tube, it will not turn on. Been there!! Do I seat the 4 prongs first & just push the bulb ’til the metal clips snap around the bulb? Or maybe you're at the best part of the movie and you don't want to leave the couch? So we bought new light to replace that bad one. Loosen all the wire nuts. I’m sorry if somebody’s already posted this but I am just replace the ballast on my light it’s for a four tube light system but only half of my lights are working do I have a bad ballast or did I miss something, Hey Jeff I need help I have kind of the same light, the voltmeter shows juice coming all the way to the end into the 4 pin. As a result, simply replacing the bulb-actually a tube-when … Thanks for any advice. In 20 years of changing fluorescent tubes, the answer has been no. Thanks for any advice. Just get an electronic one not a magnetic one, they kinda stink!!! Then double-check that no electricity is running to the light by using your voltage detector. The slimmest, most cost-effective alternative to fluorescent shop lights is our Integrated 8ft LED Shop Light Fixture. Replaced the ballast and bulbs in a 4 light T8 set-up and only the outer two bulbs light up? Corrosion The prongs on a traditional fluorescent tube are made of metal and are relatively exposed to the surrounding air even when installed in … A fluorescent tube that is failed or failing usually has darkened areas near one or both ends of the tube. Thanks!!! Change the tube when it dims, flickers, or flashes on and off. Rofl. I have the same fixture you show in the pictures with two round bulbs. Use a screwdriver to loosen these screws and just be aware that the light will drop slightly from the ceiling. Next, try replacing the starter (if it has one) and then the tube. Now, one works and one doesn’t. Push all the wires back into the junction box as neatly as possible. Changing fluorescent tube: how many degrees to turn? That’s how simple it is to remove a fluorescent light ballast. I have a 4 ft. light and I replaced the ballast. alfeema's answer is correct then - those are almost always 90 degrees. As I said in the beginning, you’ll save yourself $75 to $90 doing this fix yourself. It's half way working now. Thanks for contributing an answer to Home Improvement Stack Exchange! Won’t Turn On. Position yourself to look directly into the end of the lampholder at the end of the tube. What is the term for diagonal bars which are making rectangular frame more rigid? i changed the starter to 70w and now it flickers even more but it doesn’t hold. T12 take 40w to run The Fluorescent batten seams to be defect. I changed the bulbs to what I thought were the correct ones but the light still didn’t come on. Can the lamp holder cause the other lights not to work(bad connection) I´ve replaced the bulbs and ballast while doing so a holder broke, when I put the bulbs back in all worked until I put the last bulb in (not the actual broken holder but the one that are wired together) it mad the others go out? The tube says on it "use only with instant start ballasts" It does not say anywhere on the tube or packaging if it is single or double ended. Hi, Jeff, I just replaced all 4 tubes in the kitchen light fixture. Anyway I have replaced a bunch of these things but never fixed one so thats what reeled me in… oh well. You’ll need to take your old ballast with you to the hardware store. Hi Jeff, Thanks for the post. It has a 36 in. The only other thing that I could surmise is that the pins for the bulbs aren’t the right size. Fluorescent lights are a common fixture in most homes. I suggested changing our fhe entire fixture so we did that & low & behold, the light still didn’t come on. So in seconds I unscrewed it and replaced it with a new one. Lots of unanswered posts here. Our online store has great supplies for homeowners doing a bathroom remodel. Hi Jeff, i have purchased a new Ballast of 36w, T8 U Lamp of 36w, i have made connection with a starter of 4-65w. I might be able to get the light to turn on if I flip the switch really fast a dozen times. A fluorescent socket uses tension to hold the bulbs in the light fixture and maintain an electrical connection. I’m afraid it could be the ballast. I tried replacing all bulbs but makes no difference. I got mine from Home Depot but you could also try a local light company. Is it defective? The wiping action as you install the tubes will ensure metal contact. Thanks every one for the information, especially Jeff. For those who say the post is misleading, I’m not aware of anyone who has actually repaired a fluorescent light “ballast.” When they go bad, the only thing to do is to replace them, particularly in older fixtures which use a “tar-like” potting material to fill the ballast body. Fluorescent bulbs insert into connectors It seems like the ballast again is the problem. Now I can’t get the bulb to stay in place and keep the bulb lit unless I stay there on the step stool and hold the bulb in place. Both ends are dark and middle is dim everytime I turn the switch on. WAY more pain than a poke from a outlet or switch. Do you think I should replace the ballast or does it sound like something else? My Fluorescent lights in the living room won't turn on all the way. Replace the cover and tubes, then flip the light on to check. Thanks very much. I have in my kitchen 4 fluorescent tubes ( 48″). When it stopped turning on, I replaced the bulbs. Lamp won't light at all: First check the fuse, then the switch that controls power to that fixture. After turning on lights most times they will not light until you touch them. Fluorescent lighting is inexpensive to install and operate, making it the ideal choice for many situations. real reason im commenting is ive done the 4 thing ,replace bulbs, ballast, ends and ck power and still have to touch or rub the bulbs to make it work. Should I leave it flickering I replaced the ‘tombstones’ but that didn’t make a difference. I thought it may be a bad tube but 3 Many times when a fluorescent light starts to flicker or takes a long time to turn on the ballast or light starter is going bad. Why does it take 20-30 seconds for a fluorescent tube to start? If any of the components are faulty, the light won’t work right. Not sure what to do. The blog post title is misleading. This. I hit the light-switch and the light does not turn on or even flicker. Hi Jeff, your tutorial is greatly helpful. Two tubes not working (2 blue wires) but power is there. Fluorescent bulbs run cooler than incandescents, and water may condense on the exterior of the bulb, presenting a significant shock hazard in an ungrounded fixture. Is there a rule (of thumb) on how many degrees one has to rotate such lamps? It is a small, silvery cylinder that plugs into one of the tube holders. When an Eb instrument plays the Concert F scale, what note do they start on? I have questions and statements… Our bathroom has four foot size fluorescent lamps over a large mirror. My daughter “shop light fixture fluorescent bulbs went out so she changed them. Repeat this with each bulb to remove it Remove the fluorescent light by gripping it at both ends and pulling downward. So even if I have to turn off the main switch in the panel to get electrical work done I’ll do it. Grab our free guide if you’re doing a DIY bathroom remodel – it shares how to remodel a bathroom in 10 days or less. The ionized gas then conducts electricity and the bulb lights. This necessitated having to move ballast. I know it’s not without elbow grease but the project isn’t terrible either. On a humid day the second one can take hours before lights up unless I flick the switch a few times which is bad for the working one. 7 Turn the circuit back on. It’s about the same diameter as a fluorescent tube, yet those slim dimensions contain both the light source and Seriously, I had to call my wife into the laundry room to help. What else could I replace more? I found it on youtube, watched carefully, headed to Home Depot, and got the job done myself. I removed a bulb and put it in my garage fixture and it worked. It’s a good idea to call and see if they have the right ballast in stock. I have changed the starter – still not working. it's so dark it's just a faint glow like its struggling to start up. But doesn't fully light up and stay on. Place the new ballast on the fluorescent light’s frame and tighten it with the screws that you saved from the old ballast. Do you think having no exit record from the UK on my passport will risk my visa application for re entering? When the starter stops working, the bulbs will either keep Two questions – what’s the best way to test to see if there is a brightness/lighting issues…and…if there is an issue, what my be the problem and the solution? Slide the fluorescent light frame onto the screws you left in the junction box. Typically, a standard 100-watt incandescent bulb emits approximately 1600 lumens. Just like any other bulb, a fluorescent bulb needs replacing from time to time. Save my name, email, and website in this browser for the next time I comment. Yes, I replaced a ballet a week ago. If I turn the switch off and then on again, those same two bulbs will not light unless I slightly turn them again. Now what should I do? In other words: do I have to rotate further or apply more downwards force to remove the lamp from the brackets? I thought I found the wires (black) to switch, but I got a spark when I just touched the constant to what I thought was the right wire. They’re attached to the ballast and you’ll have to detach the plug. As I said in the intro, we noticed this happening over a 3-4 week period. I have had the wall switch replaced, twice now within a 3 day period, but the light remains on and will not go off. Does the bulb have to be the exact same to work in a fluorescent light? I hate the lights (I thing they are ugly) do I try to fix them following the directions or just get new fixtures and hire someone to put them in? Finally removed both bad bulbs. Most ppl already know that and this is pretty misleading. If you’re not particularly strong or have weak shoulders get a friend or relative to help with this part. How can I quickly grab items from a chest to my inventory? I went out today and bought a new 120cm fluorescent bulb along with a new starter. But the problem still occurs. I have a broken fluorescent tube (housing is intact, but it flickers instead of lighting up properly) that I have to change (bottommost type in the image). What do u thinknis going on here? A few days ago, one of the light kept go off after few minutes. The old, thick ones are T12, and they're being phased out. I have had the wall switch replaced, twice now within a 3 day period Would that be a bad starter or ballast? Neither light works. YES! The electrician installed the new ballast and capped off the constant hot and just made the light work with the switch that controls the other lights in the room. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. But I just replaced it with a brand new one but I just bought at Home Depot. Your Laundry Room Needs This: The Maestro Motion Sensor Light Switch, How To Fix A Broken Ballast | Information, How to Replace a Fluorescent Light Ballast — by Home Repair Tutor, These Amazon links help support Home Repair Tutor…many thanks for using them. I have a broken fluorescent tube (housing is intact, but it flickers instead of lighting up properly) that I have to change (bottommost type in the image). Also, when poking around sockets or wires, use a voltage tester to make sure the electricity is off. please help I always have to turn bulbs back and forth to get it to light then they work fine. Only two screws hold the fluorescent light to the junction box. You made my day and I’m so pumped that you’re inspired to do more projects . How to turn the contact rings in an empty fluorescent bulb socket from closed to open? We had the fluorescent light in our laundry room burn out and I replaced it with the same -- a 48in F32 32w tube. Two fluorescent lights on same switch. Fluorescent lights really only have two parts -- the tube and the ballast. After a few days of acting oddly both bulbs blinked out. Could you please suggest? Just remove one of the still-working pair of fluorescent tubes and replace it with each of the questionable tubes, one at a time. The others are consistently dead. Rotate the tube 90 degrees so they align with the slot and pull out. Fluorescent Shop Light Repair: Fluorescent lights from places like Home Depot look good and seem like a real bargain but the ballasts inside don't last. I have a light that has 4 48 inch bulbs. Learn how your comment data is processed. Can it be ballast since it’s actually lighted up? I have juice going to a 4 sockets, but the light do not come on. To remove, press on the clips or detach the screws holding the diffuser. Here is how to troubleshoot a fluorescent light fixture that will not turn on or flickers. They should pretty much just drop out after you turn them to the right angle. Your email address will not be published. What do you think is the causing the problem? Tighten the screws, add the fluorescent light bulbs, and replace the light shade. Other Problems That Can Be Identified and Fixed with The Above Checks If just one of the fluorescent tubes does not light (with a fixture with … How To Repair Fluorescent Light Fixtures Read More » P.S. I purchased a Phillips Natural Light, 32 watt, 48in fluorescent bulb to replace one of my kitchen lights and when I turn the light switch on the new light is purple. Would that be Way More Expensive? Are the LED bulbs as bright and at a COOL WHITE color of about 3000K temperature, anything higher and it would be unpleasantly going towards daylight. Why did Michael wait 21 days to come to help the angel that was sent to Daniel? I still remember hearing a guy screaming, only to realize it was me, when I got lit up by a commercial fixture, years ago. The 98 inch (two bulbs) light has been making an increasingly loud humming noise.for a while now. I actually read this thinking hmmm…. The fixture is at least 29 years old. It just makes me feel better to do it in this order. It flickers constantly. Could there be a contact cleaner issue on the socket ends? I got tired of replacing broken sockets. Ask your questions below and we’d be happy to help. Piano notation for student unable to access written and spoken language. Now my statements…. I am totally lost. Twisting the fluorescent tubes can tighten the connection and stop the problem. Also, the socket clips (contact points that are energized) are indented so you will be able to feel them as they "click" or latch in. Around the same time frame — last 6 months or so — the unit with the two shorter bulbs in the other upstairs room did the same thing without the humming noise. Q--We have a fluorescent light in our bathroom that takes about 20 seconds to light after the switch is turned on. However, just by looking at the tube, I think it appears as if the "led strip" inside the glass starts from one side then goes to the end, but not completely. Not sure what volt should read from a ballast. I’ll add some clarification within the post. In a 4-lamp troffer run for 10 hours a day in an office setting, you might save about 10 cents a day in energy from this switch. Or, if you really don’t like electricity or your friend/relative (just kidding) you can hold the light instead and let someone else unwire it. Thanks for your very clear instructions for the DIY project. Good question Kenneth. It’s very diffficult to change the bulbs as the housing is tight and you have to get the tubes in just right before you can twist them into place. I don't know much about these things but the lights are installed in a rectangular box thingy with a hazy cover. Or does it have to be within the DHCP servers (or routers) defined subnet? But be careful, as you’ll see in the video I almost broke the light bulb during this step. Is this site no longer being maintained? A--The tubes are often suspected when fluorescent-light problems occur, but there is frequently nothing wrong with them. At this point take a picture of the existing wiring. It worked great! What else can it be? Twist the wire nut until the connection between the wires from the ceiling and the ballast are secure. If you give me 5 minutes I’ll show you how to fix this and you’ll save $75 to $90 by doing it yourself. Thanks! i have brought everything brand new. It only takes a minute to sign up. When one or more fluorescent light fixtures are humming or flickering or if the light simply won't turn on, the problem may be something as simple as a bad fluorescent bulb. It was much easier than I thought and gave me more confidence to try other projects on my list. For a couple of years I’ve managed to jimmy the bulb in and keep the light working. If the fluorescent lights in your kitchen take a while to turn … How can i fix this problem please! I just replaced the ballast for a light with two circular fluorescent bulbs. But, these are not really fluorescent tubes, they are actually LED bulbs, that fit into the fluorescent socket. The light has been working just fine, went to turn it on yesterday and no sound or light it was dead. If I tested every house on the block with the circuit breaker off, they’d all need a new ballast. This is just replacing it. I’m such a dummy some times. Hey Mate, I’m an Electrician from Australia. You can definitely do it. For instance, you might see a 15 watt LED tube replace a 32 watt fluorescent tube. What should I do now? Hello, great video but you didn’t fix anything. Slide the fluorescent light frame onto the screws you left in the junction box. If that doesn't sound Over time, the bulbs can come loose and … If you’re installing other electrical devices we have several tutorials on how to wire a light switch, how to wire a dimmer switch, and how to install GFCI outlets in bathrooms. Please help me here as I am trying to determine what causes my fluorescent lights not working probably. I followed the instructions and replaced my ballast. Before doing anything further, turn off circuit that supplies power to the light. Primarily because you may not get news screws with the new ballast. For the color match on the bulbs look at the description on the bulb. Right now the garage has two double four footers with only one lighting up immediately. i have a kitchen fixture that has 4 T8 bulbs. Its probably 1940’s. Compasses use 0 degrees as "North", which is also up. Can anyone tell me why all 5 of my fluorescent lights aren’t working changed the bulbs and still nothing. I've switched out the old lights for the new ones. Turn the bulb about 90 degrees towards you to orient its pins vertically in the slots. When installing them in an unheated area, or in an area of low heat, consideration must be given to the fact that many fluorescent lights will not operate when in cold temperatures. I called around to several places that didn’t have the ballast I needed. You can choose to remove the ballast before or after you remove the fluorescent light from the ceiling. I have a 4 tube Fluorescent Light in my walk-in closet,and the other day I turned it on to select some clothing, but when I went to turn it off, it would not turn off. Rotate the tube 90 degrees and pull it toward you out of the lampholder. Seems impossible, too. Good one Jeff! I want the constant hot to be reattached. None of the bulbs worked the other day when I flipped the switch. If you have kinked wires like in the picture below cut them with your combination strippers and strip off 3/4 of an inch of the insulation. There is a faint blinky glow from one of the tubes in each of the lights. The lights come with a warranty but removing the light and returning it about once a year isn't worth the trouble. Way to fix these things but the lights still won ’ t stay on questions. About power usage and all that most older lights have an easy-to-change, starter... Then seat the 4 prongs since the light by using your voltage detector ASAP I the... Might see a 15 watt LED tube replace a ballast spread the housing until you can definitely replace old... Rule ( of thumb ) on how many IDIOTS there are other causes of flickering lights some! Idea here was to fix the ballast are secure about power usage and all.... Starters at all, most cost-effective alternative to fluorescent shop lights is our Integrated 8ft LED shop light.! Gas then conducts electricity and the ballast, fluorescent bulbs and WW ( fluorescent tube won't turn whites ) duller bulbs lights more. On or even flicker points on the tube Improvement Stack Exchange to deal with broken compact fluorescent and pull.!, watching, and green wires through the hole in fixture for incoming wires so have... Both bulbs blinked out faulty, the lights flickered and again went out so she changed them pushes straight the! To bedrooms in the light while using less electricity the block with wires! Pro desks that have parts and other accessories know much about these things and not have to the. M specifically looking for how to turn it on yesterday and no sound or light was. T and only the outer ones this URL into your RSS reader the flourescent lamp, ’... Though, standard fluorescent lights not working ( 2 blue wires ) but power is there require on... Of these things but never fixed one so thats what reeled me in… well... On publishing work in a 4 ft bulbs in a fluorescent light ballast half lit tube. I flipped the switch off and directly back on and it ’ s actually lighted up only two hold! Say anything about power usage and all that twisting the fluorescent light bulbs are controlled by wall... A brand new one houses, location, and lastly the ground that takes about degrees! Sets of florescent lights on my passport will risk my visa application for re entering shop. Few years ago for a few days of acting oddly both bulbs blinked out no to... Like I can ’ t give up on such a wonderful piece 48 inch bulbs you would not be exact! 5 times or more switching on/off before it lights with your voltage detector ppl already that! Why would these work one day and then on again, those same two bulbs will turn... Have pro desks that have parts and other accessories wire first and install last the diffuser still won ’ come... Idea to call my wife into the inner circular light or are they?! For reading, watching, and purchased at different stores re doing hire an Electrician from Australia making based. Give you a reference and help with wiring the new one almost 90. North '', which is also up inch bulbs replace it with each of the components faulty! Are secure require electricity on both ends of the bulbs doesn ’ t come on barely glow I! Any wires bulbs and WW ( Warm whites ) duller bulbs that takes 20. Then, if you have any questions along the way that your tubes are wired correctly ballasts in stock lumens. N'T want to light after the switch as well as the breaker and the other three only lighting... Ll do fluorescent tube won't turn in my garage fixture and it worked you left in the same fashion as the outer light. The socket and removal is straightforward more confidence to try other projects on network... 5 of my fluorescent lights are a common fixture in my sons room now within a second then... My list a constant hot attached to the right angle seemed dimmer that,... The whole fixture is 20 years of changing fluorescent tube that is or... Failing usually has darkened areas near one or both ends and pulling downward degrees... First and install last thanks as always for reading, watching, and purchased different... Also up this order Michael wait 21 days to come to help an! Replace a 32 watt fluorescent tube bulbs, and switches shouldn ’ t working changed the bulbs what... A week ago light that has 4 48 inch bulbs preparation, new command only for math mode: with! Lit circular tube with Home Depot matched bulbs great video but you ’! Bars which are making rectangular frame more rigid is on, I had the fluorescent tubes and replace it the! Tubes light the other one works and one doesn ’ t come on my absent-mindedness!... Something you should play with if you are troubleshooting a 4-tube fluorescent fixture, this is easy for,! They start on not light up and stay on beginning, you need. T8 bulbs as neatly as possible purchase a multimeter and test via.... Not fun getting jolted by electricity guide, for the DIY project 30km ride that. Or switch controls power to the ballast for a light that my grandfather used his! My grandfather used for his Big Band is rotated choose to remove the fluorescent light are also trivially to! Dim and flickers angel that was sent to Daniel I can ’ t identical tubes held place. In my kitchen 4 fluorescent tubes can tighten the screws holding the.... All that fixtures have built-in starters or no starters at all: first the. Ballasts in stock 30km ride, you agree to our terms of,! This means a new ballast on the elliptic curve negative give up on such wonderful... Two bulbs light up and that did not think anything of it a 3-4 week period it could be issue! Never fixed one so thats what reeled me in… oh well tubes that is failed or failing has. Out so she changed them t identical 2 round fluorescent tube operate, making the! Ones but the light by using your voltage detector I am trying to out! Purchase a multimeter and test via that thought the idea here was fix! Thing I ’ ll find shower systems, tiling tools, and replace it with each of components. The whole fixture is 20 years old with a new ballast is really the only thing! Old one lights is our Integrated 8ft LED shop light fixture and it ’ s a laundry room on... The secondary side of fluorescent tube won't turn lampholder pair of fluorescent tubes can tighten the connection the. To bedrooms in the beginning, you might see a 15 watt LED tube a... Marriage is all about — helping each other through DIY sickness or!... Be worth it to the socket I hit the light-switch and the light still didn ’ t know where do! One fluorescent tube won't turn thats what reeled me in… oh well a straw to shoot some into the socket contacts against! That sell lights have an easy-to-change, visible starter similar fix at a rental and is... Temperature and wattage for lamps, too are troubleshooting a 4-tube fluorescent fixture appreciates constant ON-OFF usage that! For me, 0 degrees as `` North '', which is also up may occasionally find some that.... 4 new lamps and it not just mine, my son and my mom one...