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    belll1962's Avatar
    belll1962 Posts: 2, Reputation: 1
    New Member
     
    #1

    Oct 25, 2008, 10:47 AM
    Heater will not stay on
    My Ducane gas heater ignites but then shuts off. A proffessional can't find the problem. He has cleaned it, changed the filterjumped the theristat, put on a new pressure switch, put on a new flame sensor and examined everything else he could think of.
    Please help! I'm running out of money and patience.

    Thank you
    belll1962
    dale3's Avatar
    dale3 Posts: 12, Reputation: 1
    New Member
     
    #2

    Oct 25, 2008, 11:40 AM

    Is he checking these parts or just replacing them? Is he using a meter? Does your furnace have any trouble shooting codes (LED) on the circuit board? It sounds as if he is just changing parts hoping to get the right one. How long does the furnace run? Is he checking the low voltage circuit to see what is droping out the power? Sounds like possibley a problem grounding issue with the flame sensor.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #3

    Oct 25, 2008, 12:12 PM
    Replace the wire on the flame sensor unless the one he replaced came with a new wire. This has been mentioned on this board by others as a cure for this problem.

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