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

    Nov 10, 2007, 09:27 AM
    -AC message on Honeywell Chronomatic III
    Every fall I need to relight the pilot light on my Trane Forced Air Gas Fired furnace. I can get the pilot light lit and the fan to come on - the burners ignite and then after a minute or two they shut off and the pilot light goes out. When I checked the thermostat I have it set to heat and 80 just to make sure it will stay on - there is a message now that says 80 -AC which I haven't noticed before - any help? :confused:
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 10, 2007, 01:00 PM
    You might need a battery for the thermostat. Try that first and report back.
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