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

    May 12, 2007, 01:06 PM
    Upgrade to honeywell therostat
    Upgrading to digital honeywell rth230b thermostat. Old one worked new one does not. Wired same way. White to white, green to green, yellow to yellow and red to RB with a jumper to RC. Is this correct?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    May 12, 2007, 01:26 PM
    Yep sounds correct unless the guy that put it in changes the color code that is used.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
    Ultra Member
    		  
    #3

    May 12, 2007, 01:52 PM
    Is the display out?
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