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    papi61's Avatar
    papi61 Posts: 2, Reputation: 1
    New Member
     
    #1

    Jan 21, 2009, 07:00 PM
    York Diamond 90
    I have a york diamond 90 and I have 4 code show what could it be
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Jan 22, 2009, 03:48 AM
    See your other post for location of wiring diagram and blink legend.

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