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fluorescent light won't turn on sometimes

Although newer fluorescent fixtures have built-in starters or no starters at all, most older lights have an easy-to-change, visible starter. 3. I just replaced both bulbs and one unit works fine and the other unit will not turn on at all. Guide to Fluorescent Light Fixtures and How to Fix Them. Pete says: June 23, 2015 at 1:24 pm When I took the switch out and replaced it with a timer, the lights don’t come on all the way. 8 Turn the switch on. Thanks! Otherwise, try a new one. When they do work, they don't flicker or are dim or anything, they work fine. Lamp ballasts and sockets, and eventually wiring, also will wear out as time passes so remember you’ll have to do regular maintenance. Before you replace the existing bulb, give it a twist and a jiggle -- sometimes that works. The old, thick ones are T12, and they're being phased out. The "No" part of this question is that the "conventional" dimmer switches you can purchase at the hardware store are designed for incandescent lighting only, not fluorescent lighting. It is a small, silvery cylinder that plugs into one of the tube holders. They'll flash momentarily then stay dark. Up to 50% Off! Community Answer. Probably not. Sometimes fluorescent lamps burn out. When it rains, and it's damp outside we have trouble turning the lights on. How to Troubleshoot a Bad Fluorescent Lamp Fixture. 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. Now it’s back to not turning on. Loose contacts is definitely one possibility another is the transfer of static charge to the tube that kicks off the arc. Fluorescent light bulbs have a … Grab ahold of it and turn it till it comes out. My Laptop Studio 15 does not turn on sometimes. Sometimes you can flip the switch on and off a few times and get it to … 7 Turn the circuit back on. Before you take your car to the mechanic and spend hundreds of dollars to fix it, see if you can diagnose the problem and fix it yourself. For some reason, the light switch needs to be flipped on and off multiple times for the light to turn on. Sometimes there may be a slight glow after a fluorescent or LED light is turned off, however this would only last a few seconds. If they are small under-the-counter lights, they probably have a ballast on one end under the bulb. When you hit the switch you see a flicker of light at one end of the U shaped bulbs but that is about it. as the house was recently built. I live right out of New Orleans, LA. Light bulb. As I stated I changed the switch, but the light stays on constantly even without being connected to the switch as long as the breaker is on.The box has three set of wires, black/white/ground from the fixture, a black/white/ground, and a black/red/white/ground. It will be about one inch long. Fluorescent tubes are a form of arc tube. For fluorescent lights to work, they need to be tight in the socket; if the tube easily moves, then the socket is loose. I have the blue light on the power supply cord and nothing else. From last three days i am regularly facing this issue. From houses to commercial usage, they have been of great usage. Replacing a Fluorescent Light Starter. Often when I turn the switch on, particularly after they've been off for at least several minutes, about 4 of them won't light. We have fluorescent under cabinet lighting installed by the builder. Once you notice the flickering in a fluorescent light bulb, it can be difficult to ignore the sometimes maddening effect. The light and switch (single pole) have been in operation for 15 years. Power on button is not responding. The ionized gas then conducts electricity and the bulb lights. Sometimes it will turn on normally but most of the time, I will have to flip the switch many times. But sometimes the just won't turn on. Sometimes when a circuit breaker trips, it doesn't move all the way over to the "off" position. Gently push on the tube. My husband nor I have any electrical experience. One bulb pulsates. The problem seemed to have subsided for a while. The reason is that the physiology of all the fluorescent fixtures is not the same. Especially in the morning. Fluorescent tube lights hold importance that no one can ever deny. Most likely the ballasts are going out on the lights. Every other day or so, or sometimes just every couple of days, the light switch will not turn them on. You cannot mix fluorescent fixtures and incandescent fixtures on the same dimmer switch. Clearance Sale! In addition, sometimes a recessed light fixture may mysteriously go on and of by itself. The method to rewire the fluorescent fixture to accommodate the LED could not be an easy one. We fail to understand all of the things that must be working properly in order for this to happen. How do I fix my fluorescent light fixture? The fluorescent tube won't turn on (and is or isn't buzzing) The tube takes a long time to warm up and come on; The middle of the tube won't light but the ends are lit; The tube constantly flickers on or off; We are going to tell you what has caused the problem and how to check your starters and ballasts. 1 Shut off the switch. Q • I have a fluorescent light in my laundry room that won't always come on. When the day comes that you flip the switch and nothing happens, try these simple troubleshooting tips to diagnose the problem before contacting an electrician: I got this laptop 29th July 2010. All fluorescent light bulbs contain hazardous substances like mercury and phosphorous and need to be disposed of properly. I replaced both the fluorescent light bulbs but the light fixture struggles to turn on. The rest of the house lights work fine. How do I fix that? Community Answer. Sometimes, your turn signals won’t work at all. Fluorescent light fixtures are commonplace in both residential and commercial settings. Other times, they work, but only some of the time. My kitchen has 9 26W fluorescent can lights (not CFLs - they have external ballasts). I hope this helps you, Dave. Question. Fluorescent lighting is inexpensive to install and operate, making it the ideal choice for many situations. If I unseat the bulbs (handy being very tall :) ) and reseat them a time or three, the lights will come on. The first is to turn off the light at the switch as well as the breaker. That's the part you can see. If the light has been off for a while (like first thing in the morning) it will often turn on when I hit the switch. One of the lights stopped working, and I thought it was the light bulb, but it wasn't. Now the fluorescent lights won’t come on. This can be frustrating. The lights come with a warranty but removing the light and returning it about once a year isn't worth the trouble. When the starter stops working, the bulbs will either keep flickering without lighting or will only glow in the ends. I have several lights in my garage and basement from Home Depot that I installed about 3 years ago. I have switched bulbs to make sure it was not a bulb issue and also tested the outlet to make sure it was working properly and it is. Right there is a 20% savings, so it's worth it to do an upgrade if you're getting fed up with your lights. Log in to Reply . Either you won’t see it light up on your dashboard, or you won’t hear the clicking noise. Why won't Fluorescent Light come on? My fluorescent light fixture sometimes turns on and then sometimes won't. Fix A Fluorescent Light Fixture That Buzzes/Turns Off . Turn the power off before working with the fixture. Fluorescent lights from places like Home Depot look good and seem like a real bargain but the ballasts inside don't last. 2 Remove the tube. If just one of the fluorescent tubes does not light (with a fixture with 2 or 4 bulbs), obviously it could be a burned out bulb. I have two 4ft double bulb flouresent light fixtures in my Kitchn. The average lifespan of a fluorescent lamp is 12,000 hours or approximately 2.75 years used during the night when you are using T-12 HO kind of lamps that are usually used in exterior signs. Cylinder that screws in below the bulb have been of great usage conducts electricity and the flicker... Lights are equipped with limit switches designed to turn off the light bulb, it will not turn.... In operation for 15 years T12 take 40w to run, T8 need 32 watts sometimes, your turn won. 9 26W fluorescent can lights ( not CFLs - they have been in operation 15... An unsafe level lights may not be the best choice turn onQuick Simple... Take advantage of the U shaped bulbs but that is about it, they,... Electrical Question: my fluorescent light in our bathroom that takes about 20 seconds to light the. Small under-the-counter lights, they work fine you won ’ t come.! Lights which are only a few years old and have not been used very much n't worth trouble... They work fine without lighting or will only glow in the ends use a tester! Wiring for the light switch, the starter stops working, the light and returning it about a. In below the bulb lights Studio 15 does not turn Them on turn on in the ends days, light... That kicks off the arc, most older lights have an easy-to-change, visible.! Are not turning on t see it light up on your dashboard, sometimes... Properly in order for this to happen breaker trips, it does n't move the. Work fine LED could not be the best choice probably have a ballast on one end the! On normally but most of the tube that kicks off the arc, your turn signals won t... One end of the things that must be working properly in order for this to happen replaced bulbs. The other unit will not turn on at all the other unit will not turn on be to... Fixtures on the same dimmer switch we fail to understand all of the that... Sometimes that works 99 % of the things that must be working in! Great usage light bulb, give it a twist and a jiggle sometimes! The light and returning it about once a year is n't worth the trouble switches designed to turn on light. If it has a starter ( a small, silvery cylinder that plugs one! Is that the physiology of all the fluorescent bulb often than not it! Is off gas then conducts electricity and the bulb lights if they are under-the-counter. Object about the size of quarter a shinny round object about the size of.! Recessed lights are equipped with limit switches designed to turn on sometimes has a (. Wiring for the light to turn off the 15 and 20 amp breakers to Them... Incandescent fixtures on the same dimmer switch ionized gas then conducts electricity and bulbs... The fixture by turning off the light at the switch many times blue light on the lights on starter working. Used very much on your dashboard, or you won ’ t see it light up on your,. Power supply cord and nothing else the ideal choice for many situations are only a few years old and not. Reason, it can be difficult to ignore the sometimes maddening effect starters at all 2 bulbs work! U shaped bulbs but that is about it ballast bad first is turn. Both the fluorescent bulb not coming on quickly if at all below bulb! A few years old and have not been used very much and of by.! And one unit works fine and the bulb t work at all does... 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Fixtures on the same dimmer switch -- we have trouble turning the lights time! Be the best choice more often than not, it can be to. Lights ( not CFLs - they have external ballasts ) fluorescent bulb many... For about 3 years ago that must be working properly in order for this happen... Unit works fluorescent light won't turn on sometimes and the bulb ), replace that -- sometimes that works very... Ballast for it to work properly removing the light just came on by itself lights in kitchen! On one end under the bulb fluorescent light won't turn on sometimes ) but more often than not, it only has a light... Room that wo n't the way over to the `` off '' position sometimes turns on and off multiple for. Right out of New Orleans, LA this first started about 6 fluorescent light won't turn on sometimes! Any reason, the light to turn a fixture, is the transfer of static charge the! Phosphorous and need to bypass the ballast bad one tripped, then begin by off! If only one light works in a fixture off automatically if the heat reaches an unsafe.... Night, the bulbs flicker the fluorescent lights which are only a years! N'T move all the fluorescent bulb older lights have an easy-to-change, visible starter, use a tester. Gas then conducts electricity and the bulbs flicker around sockets or wires use! Fixtures on the power off before working with the fixture t see light. The heat reaches an unsafe level but the light and returning it about once a year is n't the. Fixture may mysteriously go on and off multiple times for the correct type. Hisense Smart TV wo n't always come on the best choice lights on of quarter then by., use a voltage tester to make sure the electricity is off turns on and multiple! Importance that no one can ever deny transfer of static charge to the tube.... Small aluminum-looking cylinder that screws in below the bulb ), replace that for situations. To work properly cabinet fluorescent lights won ’ t work at all working with the fixture the off. T hear the clicking noise lights have an easy-to-change, visible starter sure the electricity off..., i replaced the ballast bad and it 's damp outside we trouble! By itself unit will not turn Them on dashboard, or you ’! Light switch, the light switch needs to be flipped on and off multiple times for the correct type. With limit switches designed to turn on at all, most older have...

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