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Thread: daikin AJ fault

  1. #1
    Join Date
    Jun 2008
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    daikin AJ fault



    Hi installed new indoor pcb, transformer board and controller to daikin fuyp71bv1 as requested. Turn on now have AJ fault unit 0 on controller. This controller is running 2 splits other system is running and cooling the indoor unit parts fitted isint doing a lot pub indoor unit green lamps flashing. Can anyone explain AJ fault and how to rectify. Thanks



  2. #2
    Join Date
    Oct 2007
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    Re: daikin AJ fault

    aj indoor pcb/capacity error- did you get a capacity set plug with the new pcb (lil tiny resistor )

  3. #3
    Join Date
    Jun 2008
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    Re: daikin AJ fault

    Thank you for the reply I had a green plug attached to the pcb but took this off as something else plugged into this from the original pcb. I still have green plug attached to original board

  4. #4
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    Re: daikin AJ fault


  5. #5
    Join Date
    Jan 2011
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    england
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    Re: daikin AJ fault

    It's usually a tiny little blue plug with a resistor

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