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  1. #1
    Join Date
    Nov 2002
    Location
    MIDDLE TENN.
    Posts
    59

    Angry beenthere, york, avy- matched with yzh

    heat pump goes from low cool to high cool on demand. my blower speed stays on high speed regarless of the call for y1 or y2. what am i missing?


    kowboy

  2. #2
    Join Date
    Jun 2001
    Location
    Louisville, KY
    Posts
    12,189
    Double check your low voltage wiring at the AVY. Sounds like you have y1 and y2 crossed there.
    Perhaps you should have read the instructions before calling.

  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,112
    Yea.
    There shouldn't be any wire connection from the thermostat, to the air handlers Y/Y2 terminal.
    The OD unit tells the air handler when to go to high speed.

    Look at your terminals at the OD unit. You'll see you have Y1, Y2, and Y2 OUT.
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  4. #4
    Join Date
    Nov 2002
    Location
    MIDDLE TENN.
    Posts
    59

    Cool thanks

    soooo right, can't see for looking

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,112
    It happens.
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    How many times must one fix something before it is fixed?

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