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  1. #1
    Join Date
    May 2010
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    Grunaire F1 error code


    i have two 121-hx units. a few months ago i got a F1 error code on one. replaced the PFC board and problem solved. now i have the same code on the other unit. replaced the PFC but still have the F1 code. all connections look good. any ideas? these units are great when they work......



  2. #2
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    Re: Grunaire F1 error code

    still broken. any ideas?

  3. #3
    Join Date
    Aug 2006
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    england
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    Re: Grunaire F1 error code

    Swap board from good unit to one with fault code, if code goes, new board faulty.
    If code stays look for another problem.
    We don't get that make over here, what is an f1 code for?

  4. #4
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    Re: Grunaire F1 error code

    Just got the same code. F1. Did you ever figure it out? Checked all the connections to the unit. Is there a reading or easy way to figure out if its the PCB board? There seems to be 3 boards which one is the PCB? I have a spare unit so can exchange parts pretty easily. Thanks.

  5. #5
    Join Date
    Oct 2009
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    Re: Grunaire F1 error code

    F1 usally means the main boards in the outside unit is bad.
    Amcor units were notorious for F1 outside PC board failures. Grunaire is made by the same company.

  6. #6
    Join Date
    Oct 2009
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    Re: Grunaire F1 error code

    Meant to say, it is the main pc board in the outside unit that likely burned out.

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