Question about Carrier XHB123D X/Y Series Heat/Cool Air Conditioner

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Furnace sometimes will not stay lit

Blower will come on igniter lite flame starts but when main blower comes on flame goes out may cycle one or two times them stay on replaced the flame sensor no change is it my control board?

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Check the heat exchanger for a crack or hole. The room air blower is blowing back into the heat exchanger extinguishing the flame. Have it checked out today. Did you get it checked yet? Now. Have I stressed to you to get it checked out yet or have you been overcome by Carbon Monoxide yet?

Posted on Dec 19, 2008

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