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    saram1978's Avatar
    saram1978 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jul 10, 2008, 11:21 AM
    Thermostat- only 4 wires
    I would like to know how to put in a new thermostat for an older house that only has 4 wires.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Jul 10, 2008, 02:31 PM
    What colors?
    1 is from transformer
    1 is for blower control
    1 is for compressor control
    1 is for heat .
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