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    jonathandavis04's Avatar
    jonathandavis04 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jun 18, 2009, 09:39 AM
    Problems with the set temperature
    Hi, I need some help please , my ac takes to long to stop when it reaches the set temperature and then 2 minutes later starts again , I live in Florida , it's hot now outside , like 92 , but even with that , it's that normal , and it even happens at night(at 12:00 am) I set it to 76 and when it reached that it took like and hour to stop and then 2 minutes later , started again , and it wasn't that hot at that time outside and even with that is to fast I think ,sometimes stops inmediately when it reaches the set temp sometimes no and the thermostat is new from honeywell , the unit is a 3 ton from trane and the house is like 1600 sqft, please can you help me with this , thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jun 18, 2009, 04:09 PM
    Read and follow any setup directions that came with the new honeywell thermostat. It sounds like the anticipator in the thermostat for the cooling side is set to close OR the thermostat is located where it gets too much heat gain OR the hole in the wall where the thermostat wires come through was not properly plugged during the install. A warm chase in the wall where the wires for the thermostat come through will allow heated air to get to the back side of the thermostat which will cause improper operation.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #3

    Jun 18, 2009, 08:35 PM
    How old is your home and is it well insulated with good attic ventilation. If not this may be your problem. Insulation not only keeps the cold out it does the same for heat.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #4

    Jun 18, 2009, 08:40 PM
    Were you having this problem before the thermostat was replaced? If not, perhaps it is wired incorrectly. If it is a two-stage thermostat on a single stage system, make sure you don't have the cooling circuit wired to the stage two terminal.
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