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    msmtou Posts: 1, Reputation: 1
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    Jan 6, 2010, 12:39 PM
    Concord 90 plus gas furnace
    I have a concord 90 plus series furnace. Call a repair man. Was fix for a day or two. Change thermostat. Furnace click on cool air comes out and then heat kick in for 7-10 minutes. And then cool air kicks in. later on cool air comes on and stays on heat never comes back on. Unless I reset it. Have to drain tube in front of furnace. Help!!

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