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    jpier81's Avatar
    jpier81 Posts: 1, Reputation: 1
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    #1

    Mar 24, 2015, 04:34 PM
    Furnace electrical relay
    I found a relay electrical devise [AC24V] on the floor next to my furnace. There are three others plugged in an electrical box on the furnace. What should I do?
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #2

    Mar 24, 2015, 04:56 PM
    Plug in relays on a furnace? Is this a warm air furnace or a hot water boiler? Does it work properly?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Mar 24, 2015, 05:50 PM
    Some furnaces use a relay box for system operation, usually a white 3 part set. Mne is on the plenum casing.
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