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Ducane furnace blower running constantly

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dmart
dmart Member Posts: 0
in THE MAIN WALL
I'm working on a Ducane model# MPGA100B4. After initial start up, lost power to inducer motor. Replaced control board. All was working for several cycles then the blower motor stuck on. I've checked the high limit and auxiliary switches and all are closed. I'm not sure where to go from here

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  • Ironman
    Ironman Member Posts: 7,376
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    Is it firing? Continuous blower is an indication of an open safety.
    Are you a service tech?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.

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