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

    Oct 24, 2009, 04:20 PM
    Intermittent pilot light burns well but main burners do not light
    I have an Olson furnace with intermittent pilot light with electronic spark ignition. There is a Honeywell S8610U furnace controller.

    When thermostat calls for heat the ignitor sparks and the pilot flame lights. The flame continues to burn while the ignitor continues to spark for about 5+ seconds. Then the ignitor sparks and flame go out. Awhile later the process restarts. The main burners never light and fan does not come on.

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

    Oct 24, 2009, 06:00 PM
    If your system uses a flame sensor clean it with steel wool or sand paper.
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