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  1. #1
    Join Date
    Sep 2008
    Location
    dania,fl
    Posts
    32

    York yth with style d vfd problem

    Large ampage unbalance goes from a to b to c phases then keeps repeating switching from phases confirmed with amp probes matches display
    All major components check out in vfd scr'/output poles
    Motor just rebuilt and rechecked
    Trips on different alarms

  2. #2
    Join Date
    Jun 2011
    Location
    Detroit, MI
    Posts
    67
    Gotta say, this is a rather vague post... I bet more details would get more attention. Is it a tm2? What are the different alarms? Are you troubleshooting with a York manual? How many tons? Does it actually run then trip out or does it tripping right at start.... you know...stuff that can actually help with troubleshooting

  3. #3
    Join Date
    Aug 2009
    Location
    Prattville, Alabama
    Posts
    2,132
    And in an open forum...

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