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  1. #66
    Join Date
    May 2010
    Posts
    1,295
    I don't know what happened to my post yesterday, BUT the Neutral (Yellow Wire) should NEVER EVER go to ground except at the service equipment. If the ballast is attached to the metal chassis, then there is no need to ground it. It should be connected to ground going back to the service panel. You having the yellow wires grounded is more than likely your problem as these guys stated.

    By grounding the yellow wire, you are feeding the transformers inside the ballasts power, but they are not getting a return current which is possibly frying them (transformer) cause the current is flowing to the path of least resistance (which would be the chassis or case). Also, there is a huge risk for electric shock by touching the metal of the refrigerator cabinet, as you are providing a new route for current to flow. As I assume you know, transformers use a iron core wrapped in wire to step down or step up voltage. The load is never physically attached to the line on the transformer, but uses a magnetic field to carry the power across it.

  2. #67
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,950
    Being pulled in after multiple ballast replacements, this may well have been the problem.

    The yellow lead ran to ground, so I tied it together.



  3. #68
    Join Date
    Aug 2010
    Posts
    3,725
    Also, there is a huge risk for electric shock by touching the metal of the refrigerator cabinet, as you are providing a new route for current to flow.
    If the equipment is installed incorrect, yes. This is why equipment must be grounded.

    As I assume you know, transformers use a iron core wrapped in wire to step down or step up voltage. The load is never physically attached to the line on the transformer, but uses a magnetic field to carry the power across it.
    Don't assume. Ballasts are dangerous, because they usually use a autotransformer design with no isolation. This means that you can get shocked from just touching one lead.

  4. #69
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,950
    Guys,

    I FINALLY got an answer to this problem and wanted to here and let you all know.

    The manufacturer installed the WRONG ballast at the factory.

    Not the first time this particular manufacturer of EXCELLENCE, has screwed me with an OEM error, but it is the first time they've manned up and fixed it on their dime.

  5. #70
    Join Date
    Feb 2008
    Location
    California
    Posts
    2,071
    I hope this problem child will stay in bed for you now!

  6. #71
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,487
    ...and this admission of course, came long after the standard reply, "It's never happened before."

  7. #72
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,950
    Quote Originally Posted by icemeister View Post
    ...and this admission of course, came long after the standard reply, "It's never happened before."
    When we service hundreds of stores with thousands of their cases installed, they cannot get away with that load of bull squitter.

    They had a guy running around with the correct ones in his truck, tucking problem children into bed.

  8. #73
    Join Date
    Jan 2010
    Posts
    6,838
    Do you know what new ballast there putting in ?

  9. #74
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,950
    Quote Originally Posted by VTP99 View Post
    Do you know what new ballast there putting in ?
    Nope.

    As I mentioned in the first post.

    I HATE lighting work.

    If the lights are ON, I'm a happy guy. I have almost zero professional curiosity about it.

  10. #75
    Join Date
    Dec 2006
    Location
    In a Mess
    Posts
    1,030

    Talking

    Quote Originally Posted by jpsmith1cm View Post
    Not the first time this particular manufacturer of EXCELLENCE, has screwed me .
    cheekie!
    Sig removed by mod. G-Rated site

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