Fluorescent Light Ballast Replacement. It is a thin metal box … To create this article, 35 people, some anonymous, worked to edit and improve it over time. When a fluorescent light does not work, most people replace the bulb, but occasionally the ballast will need replacing as well. Watch out: You could be shocked or killed. Indeed, the cost of replacing the ballast in a fixture may rival the cost of a new fixture... especially if you want to use a modern electronic ballast that lights the bulbs faster, runs cooler and is virtually hum-free. Connecting a blue wire to a Neutral(White) wire will burn out your electronic ballast. Here's what you can do: 1. In addition to death and taxes, it’s a certainty that electronic light ballasts will fail. In time, the ballast may need to be replaced. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. I have a Fluorescent light fixture in our kitchen and one day we turned it on and the bulbs were dim and they would flicker and they were buzzing. In today's blog, we break down the advantages and disadvantages of each of your options. % of people told us that this article helped them. As seen below, connecting the 4 lamp instant start ballast to the four lamps can be a bit confusing. Observe how wires are connected for future reference. Switch to an electronic ballast, switch to a T8 fluorescent As mentioned above, if you're going to climb a ladder to do a ballast change out, you may as well carry a lamp up there with you. Replace the ballast cover on the fluorescent light fixture. Most T8 tubes will have a hidden ballast, covered with a casing and resting behind the tube light. Here ballast sent channeled and configured the current to the electrodes continuously to get it heated. As discussed above, there are three types of wires. Install a new ballast, if necessary. Is it safe to insert wires into either end of a ballast? Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being. Cut all the wires connected to the fluorescent light ballast. All tip submissions are carefully reviewed before being published, Select a ballast that has either the exact same part number or is a direct replacement based on. Depending on the number of lamps in the fixture, you may have to tie some together. Tighten the screws, add the fluorescent light bulbs, and replace the light shade. The ballast is used to create the voltage and current necessary to start and illuminate the fluorescent lamp. A ballast controls the current through a fluorescent bulb to keep the light even and to protect the bulb from damage. Use the picture as a reference when splicing the ballast wires to the socket wires with wire caps. Make sure you follow the color pattern on the ballast (i.e. The Ballast is an electronic, Rapid Start. And those [dead/dying] ballasts of mine? When the ballast fails, the bulb will flicker or fail to light. If only one light works in a fixture, is the ballast bad? Fixture hums or buzzes: Replace the ballast (see "How to Replace a Fluorescent Ballast," above). Provide 1 inch (2.5 cm) (25 mm) of air space between the fixture and any combustible materials to reduce fire hazards. Hold onto the ballast with your free hand to keep it from falling out. BAM!!!! If not, replace the ballast. Magnetic ballasts. Nowadays, magnetic ballasts are a rather outdated technology that manufacturers are phasing out, and so they’re usually only found on older types of lights. Changing a standard incandescent light bulb is, of course, the simplest of tasks. Remove lens or diffuser panel from light. 5. The fixture here uses a 2-bulb series ballast that gets replaced with a 2-bulb parallel ballast. Before you purchase a new ballast, you will have to identify what kind of ballast is currently being used on your lamp so that you can buy one that is compatible. Install … The ballast takes in electricity and then regulates current to the bulbs. The wires from the new ballast are trimmed of excess length. Separate wires from existing fixture. If retro-fitting a new electronic ballast for a failed magnetic ballast, the new ballast may require new energy efficient lamps - and new holders sized to fit pins of the lamp. To safely replace the ballast in your fluorescent light, turn off the lamp, remove it, and check the voltage of the feed wires with a voltmeter. If there is oil present, then you’ll need to replace the entire ballast, as the internal seal has been damaged by excessive heat from the light. As a last resort, replace the fixture. This article has been viewed 1,022,213 times. Touch a light fixture only after disconnecting it from the room’s electrical circuit. 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