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    daleeubanks's Avatar
    daleeubanks Posts: 4, Reputation: 1
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    #1

    Feb 4, 2009, 07:27 PM
    The Flame goes out
    In the gas furnace, is it normal for the flame to ever go out when the fan is on?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Feb 4, 2009, 07:42 PM
    Yes under the correct circumstances. The flame will go out then the blower will keep blowing till all the residual warm air is out of the furnace. Now if the flame goes out while the thermostat is still not satisfied that could be a problem with the furnace.
    daleeubanks's Avatar
    daleeubanks Posts: 4, Reputation: 1
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    #3

    Feb 4, 2009, 07:50 PM

    That's what's happening. I takes a while for the thermostat to be satisfied. We may have to kick it up way high. This is an intermittant problem. I'm hoping I just have a bad thermostat. I already changed the batteries.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #4

    Feb 4, 2009, 07:58 PM
    Intermittent problems are alweays the worst to figure out.
    daleeubanks's Avatar
    daleeubanks Posts: 4, Reputation: 1
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    #5

    Feb 4, 2009, 08:00 PM

    Could it be the stat?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #6

    Feb 4, 2009, 08:08 PM
    Yes it could be. It could also be other things like the furnace itself. Disconnect the R and W wire in the furnace and jump them together with a piece of wire. Then turn the power switch back on and let the furnace run. It it runs without turning off the burner flame then the problem is probably with the thermostst. If the burner cuts off then the problem is probably with the furnace.
    daleeubanks's Avatar
    daleeubanks Posts: 4, Reputation: 1
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    #7

    Feb 4, 2009, 08:12 PM

    Ok, thanks, I'll try that a get back to you
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #8

    Feb 5, 2009, 04:54 AM
    Quote Originally Posted by hvac1000 View Post
    Intermittent problems are alweays the worst to figure out.
    Brother, don't even get me started, I'm saving it for my book!:p
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