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    ppaluch's Avatar
    ppaluch Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Nov 8, 2013, 12:47 PM
    Nordyne Gas Furnace model mmha77aahr-05
    Burners light fan will not turn on
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Nov 8, 2013, 01:33 PM
    Make sure switch is set on T'stat, can you hear it clicking to start? Humming? Could be a condenser or fan relay or fan switch.
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
    Ultra Member
    		  
    #3

    Nov 9, 2013, 05:58 PM
    If you have a voltmeter & know how to use it, after the burners are on for 30 seconds or so check for 120 volts AC between the fan "heat" terminal & neutral or ground.
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