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Thread: Two stage furnace
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05-18-2010, 03:33 PM #1
Jody Humbert Guest
Two stage furnace
Does anyone know if a 23 year old Trane two stage furnace should completely shut off(burners and blower) while going through its cycles. I thought only the burner shuts on and off but the blower continues to blow the air. Thanks for your comments.
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05-19-2010, 03:54 AM #2
David Bell Guest Re: Two stage furnace
The fan is controlled by a temp sensing device (klixon) located in the heat exchanger area, if the heat exchanger is cool it shuts the fan off. The control board may also have a blower delay or post purge setting.
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