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    proudpapaw5's Avatar
    proudpapaw5 Posts: 1, Reputation: 1
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    #1

    Oct 29, 2008, 08:36 AM
    Trouble with honeywell stat th5220d
    Have heatpump gas backup when aux heat comes on it doesn't drop out the heatpump. It stays running but I'm getting 24volts from tstat?

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

    Oct 29, 2008, 10:25 AM
    Xx
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Oct 29, 2008, 10:28 AM
    http://customer.honeywell.com/techli...0s/69-1783.pdf

    Make sure you check your installer settings. If it worked before it should be working now. If it is a new install you could have other problems

    Set to 2 heat and 1 cool in settings
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