Atwood Hydro Flame Furnace runs ALL the time

Discussion in 'Talkback' started by JeffBert, Dec 2, 2012.

  1. JeffBert

    JeffBert Junior Member

    Hi, I just started having a problem with my Atwood Hydro Flame Furnace (8500-IV). The furnace runs all the time no matter what setting I have the Thermostat at. Also, I tried disconnecting all the wires on the Thermostat and it still runs... Blower and Burner going full blast.

    Can anyone point me what to T-shoot first? Bad Thermostat? Bad Relay? ???

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