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

    Jan 12, 2009, 07:22 AM
    Carrier Hvac heat pump with aux/em heat- NO AUX HEAT
    I have tried to install Honeywell 7500d thermostat. I get heat pump heat but no emergency heat although the termostate is calling for it. The installation manual says to see authorized agent if I have a dual 0/b on existing thermostat and another wire is attached to common.
    As of now, I have the following wiring: r to r and rc (bridged). O to o/b, y to y, g to g, blue to common, no L wire connected, w2 to e and aux bridged.


    How do I wire it? Thanks.
    dac122's Avatar
    dac122 Posts: 463, Reputation: 17
    Full Member
    		  
    #2

    Jan 12, 2009, 10:44 AM

    Is your tstat properly configured?
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