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    sidceb's Avatar
    sidceb Posts: 1, Reputation: 1
    New Member
     
    #1

    Apr 17, 2011, 02:23 PM
    Where does a blue A2 wire goes in a home termostate?
    I'm replacing mu old thermsotate with a new honeywell digital, but connected to my old unit there is a blue wire connected to screw A2, on the new honeywell unit there is no A2 port. Where does this blue A2 wire goes on the new thermostate? Thank you for your help
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Apr 19, 2011, 02:37 PM
    Probably c---common

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