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

    Jan 19, 2008, 08:04 AM
    Rheem criterion II gas furnace
    It is now about 57 degrees in my house. My furnace just turned on but there was no ignition, no flame. I could hear the blowers running. Is my flame sensor bad or dirty? Or is it something else? How do I fix this? I have fixed my furnace before with a new flame sensor or something like that. I would have to research it. But it only cost me around $52for the part about 6 years ago.

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

    Jan 19, 2008, 12:39 PM
    It could be the flame sensor. Try cleaning it before replacing. You can do a search here and find many flame sensor problems.
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