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

    Oct 24, 2008, 12:14 PM
    Carrier 58DHC075 furnace ignites but flame goes out
    I have a Carrier natural gas furnace. Model 58DHC075-HC
    I think it is 92000 BTU. It was made aroung 1990
    The furnace ignites OK, but then after a few seconds the flame foes out.
    I guess this might be due to a faulty flame detector. Is there any way I can be sure of thuis befoire I order a fl;ame detorcor?
    Is there any other possible cause I should check?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 24, 2008, 06:31 PM
    Carefully remove and clean metal rod on flame sensor with sand paper. Replace and try to fire it over.

    Also see other problems with this unit.

    https://www.askmehelpdesk.com/heatin...te-158980.html
    Joe Mack's Avatar
    Joe Mack Posts: 1, Reputation: 1
    New Member
    		  
    #3

    Feb 1, 2010, 05:55 AM
    This happened to me but on a more variable scale. Make sure that the outside exhaust is not blowing towards your intake. The oxygen-poor air was being sucked into the intake, and the flame "smothered" and fluttered-out. Re-aimed the exhaust, and has been perfect since.
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