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    Avalonspeeder's Avatar
    Avalonspeeder Posts: 1, Reputation: 1
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    #1

    Jan 16, 2014, 05:16 PM
    Thermostat question
    What causes my system to display Aux Ht. Does this mean my system is run with straight electric? How do I correct this?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Jan 16, 2014, 05:27 PM
    It means you either have the Aux heat on manually or the system automatically turns it on because of insufficient heat from the heat pump. One of the drawbacks of heat pumps in very cold areas.
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