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    jojo06's Avatar
    jojo06 Posts: 3, Reputation: 1
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    #1

    May 24, 2006, 06:17 PM
    Honeywell RTH230B A/C Fan Not Working
    I've read numerous threads on this model but could not find a solution. I just replaced my old thermostat with this model. The wiring on the old thermostat went as follows:

    Red - Rc jumped to Rh
    White - W
    Green - G
    Yellow - Y

    When I removed the old thermostat I noticed there was a blue wire which was not connected to anything. When I put in the new model I wired it exactly like the old one but the fan (AC unit in backyard) does not turn on (on Cool/On mode) so the AC is not cool. (Gas Furnice)

    Any help here is apreciated.
    jojo06's Avatar
    jojo06 Posts: 3, Reputation: 1
    New Member
    		  
    #2

    May 24, 2006, 10:29 PM
    When I taped the red, yellow, and green wires together the ac worked. Does that mean the thermostat is defective?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #3

    May 25, 2006, 01:33 AM
    You have it wired correctly, and connecting the wires as you did simulated the stat, so seems it is not working .
    jojo06's Avatar
    jojo06 Posts: 3, Reputation: 1
    New Member
    		  
    #4

    May 26, 2006, 11:31 AM
    Turns out it does work when the stat is on "Cool/Auto" but not "Cool/On"... is that normal?
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