Rheem HP CU
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Thread: Rheem HP CU

  1. #1
    Join Date
    Jun 2007
    Location
    So Cal
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    101

    Rheem HP CU

    Last few condensing units I installed wouldn start till I grounded one side of the coil on the contactor

    Wonder how come I had to do this. Should I have done something different???

  2. #2
    Join Date
    Mar 2004
    Location
    Grottoes VA
    Posts
    5,856
    your not running a common wire.
    Karst means cave. So, I search for caves.

  3. #3
    Join Date
    Jun 2007
    Location
    So Cal
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    101
    Yeah I did, honest.

    From the fan/coil

  4. #4
    Join Date
    Mar 2004
    Location
    Grottoes VA
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    5,856
    You have a bad roll of wire then.
    Karst means cave. So, I search for caves.

  5. #5
    Join Date
    Jan 2006
    Location
    Hangin out with you losers
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    1,043

    Hmm

    Quote Originally Posted by karsthuntr View Post
    You have a bad roll of wire then.
    my guess
    I remember my first day,It was fun!

  6. #6
    Join Date
    Apr 2004
    Posts
    7,680
    well that or the time delay in the board (breaks the common) is either not fucitioning or you have not waited it out. grounding the common at the contactor just eliminated the LPS and timing functions including the soft shift.

    Could be wire, but I doubt it, otherwise the board would never power up.

    There are some lights on that board, what are they telling you?

  7. #7
    Join Date
    Mar 2007
    Location
    NW AR
    Posts
    2,478
    The last few? What did you do to fix the first one, leave it grounded to the cabinent?

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