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    Nicole Boudreau's Avatar
    Nicole Boudreau Posts: 3, Reputation: 1
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    #1

    Oct 16, 2014, 08:42 PM
    Replacing a ballast on a fluorescent light
    How do I wire a new ballast to my fluorescent light fixture if the old one had only one red and one blue wire, but the new one has two blue and one red. There are no yellow common wires on the other end of the light.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #2

    Oct 17, 2014, 05:25 AM
    Only two things to consider. First of all, do you have the right ballast? Secondly, if the ballast does NOT have the wiring diagram on it, get one that does.
    Nicole Boudreau's Avatar
    Nicole Boudreau Posts: 3, Reputation: 1
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    #3

    Oct 17, 2014, 07:31 PM
    It has a wiring diagram, but there are no wires on the other side of the lamp to attach the red wire to.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #4

    Oct 18, 2014, 05:25 AM
    Nicole,

    You have the wrong ballast. It sounds as if you have a ballast for a single bulb fixture instead of a two bulb fixture.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #5

    Oct 18, 2014, 06:22 AM
    Can you tell us which bulb(s) you have in the fixture? Perhaps we can tell you which ballast to use. Do you know if the fixture has a starter?
    Nicole Boudreau's Avatar
    Nicole Boudreau Posts: 3, Reputation: 1
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    #6

    Oct 20, 2014, 07:23 PM
    I figured it out. It was the right one, just had to cap off one of the blue wires. Thanks anyway!
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #7

    Oct 21, 2014, 06:47 AM
    Glad you got it figured out.
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