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    muzior's Avatar
    muzior Posts: 1, Reputation: 1
    New Member
     
    #1

    Dec 14, 2013, 02:37 PM
    Trane furnace start s and stops in 15 sec. interval
    Trane furnace start s and stops in 15 sec. interval in auto mode.Gas runs OK. If on mode runs properly.
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #2

    Dec 14, 2013, 06:40 PM
    Sounds like you have a bad fan relay, likely located on the control board.

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