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    zerodark30's Avatar
    zerodark30 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 12, 2014, 10:14 AM
    Furnace
    My furnace fires up and after a couple of minutes the flame goes out but the blower keeps running for awhile, I cleaned the heat sensor and re-installed and the flame stayed on longer but after about 4 minutes it went out again but the blower kept working, does the heat sensor need replacing.
    bitters's Avatar
    bitters Posts: 348, Reputation: 12
    Full Member
    		  
    #2

    Nov 12, 2014, 11:20 AM
    If the is flame sensor is bad you would only get flames for a few second's.Sound's like maybe it's going off on high-limit. Make sure the filter is clean.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Nov 12, 2014, 03:05 PM
    Does it show any codes? Possible roll out although that is usually quicker. Does it have adjustable high limit?
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