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    3 thumbs's Avatar
    3 thumbs Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Nov 22, 2007, 12:23 PM
    Installing a New Thermostat
    I am replacing a thermostat on a carrier a/c heat pump unit model # 40AQ036330EH.
    The new hunter digital thermostat I choose works fine with A/C, But when I switched it to heat, the unit runs constantly.
    I have tried resetting the thermostat to default settings to no effect.
    I cannot locate a wiring diagram for the carrier unit.

    I'm hoping its just a wire not connected to the proper terminal.

    Any help would be wonderful.

    Thanks

    Tom
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 23, 2007, 06:48 AM
    Check the sticky notes at the beginning of this board for wiring information on the thermostats.
    acetc's Avatar
    acetc Posts: 1,004, Reputation: 79
    Ultra Member
    		  
    #3

    Nov 23, 2007, 08:11 AM
    The wiring diagram is on the air handler panel, look on the inside of the panel.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #4

    Nov 23, 2007, 01:51 PM
    Your lucky the hunter stat worked as long as it has,, have had nothing but bad luck with them,, but you could be one of the lucky ones
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