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

    Dec 27, 2011, 05:59 PM
    Armstrong air ultra 80 V 45647-001, lighting then shutting off
    Hello,
    I have an armstrong air ultra 80 V 45647-001, I'm having an issue with the top motor staring burners igniting and staying lit for roughly a minute then the unit shuts down usually without the bottom blower motor kicking on. I have left the fan on constant to help keep the unit cooled down thinking it was an overheating issue. I changed the thermostat (honeywell)a few days ago and put it on auto and it worked fine until recently (I'm a new homeowner and have only had the house a couple of months and this is a nagging problem). Should I just break down and call the experts? I take pride in fixing things myself however have little HVAC experience. Any help would be greatly appreciated.
    Thank You
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #2

    Dec 27, 2011, 06:55 PM
    U might try cleaning the flame senser, use fine steel wool
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