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  1. #1
    Join Date
    Oct 2004
    Posts
    115

    Trane Screw phase loss

    I have a Trane screw unit, RBH 150, that is going into phase loss alarm before the compressor can even try to start. Any ideas out there ?
    Tight is tight, Too tight is broke.

  2. #2
    Join Date
    Oct 2004
    Posts
    115
    That's a RTH sccrew....
    Tight is tight, Too tight is broke.

  3. #3
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    1,853
    Providing you have checked all three phase voltages to be correct then your next step is to check all the PT's and CT's and any fuses that may be in the wiring for them .

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