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    Oct 9, 2012, 05:02 AM
    What causes Lennox Gas Pulse Funace to cycle on/off constantly
    Have a Lennox Pulse Gas furnace, it is cycling on/off constantly, and making gurgling water sounds. Have already cleaned out the float valve assembly, it alleviated this problem briefly for two cycles and now its back to cycling on/off every few minutes and not producing the amount of heat it should.

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