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  1. #1
    Join Date
    May 2006
    Posts
    18

    Common & Run wires

    If the common and the run wires were switched on a single phase compressor would this burn out the windings? We had one supposedly came right from the factory like this and supposedly burned out on start up. my installer said to me it ran for 5 Min. I have to go out and see myself but Trane says there is no way it left the factory like that.

  2. #2
    Join Date
    Aug 2008
    Location
    Connecticut
    Posts
    24
    was this brand new equipment? what type of condenser?

  3. #3
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,803
    Find it hard to believe it ran for 5 minutes.
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    How many times must one fix something before it is fixed?

  4. #4
    Join Date
    Jun 2008
    Location
    NW Florida
    Posts
    713
    Quote Originally Posted by acfixit View Post
    If the common and the run wires were switched on a single phase compressor would this burn out the windings? We had one supposedly came right from the factory like this and supposedly burned out on start up. my installer said to me it ran for 5 Min. I have to go out and see myself but Trane says there is no way it left the factory like that.
    Yes it will fry winding. Surprised it ran. Trane says they test run all there equipment. But I have seen the people they hire. Lets say end of shift friday trying to make there quota and go home. Betcha the last few got rushed through.

  5. #5
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,915
    I've been on the Trane factory tour in Tyler, and I find it hard to believe that it would have left the factory like that, but hey, anything is possible.
    Evacuation, charging and run testing are all part of the same simiautomated process, just before the unit goes in a leak detection chamber, then on to packaging.

    I've never miswired a motor that bad, but from my experience cleaning up after DIY repair attempts, I've come to the conclusion that swapping common and run is a really good way to burn up a motor.
    If more government is the answer, then it's a really stupid question.

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