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    USMarnK52's Avatar
    USMarnK52 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 27, 2011, 12:40 PM
    Hand written circuit breaker ID
    On my sub panel the circuit breakers are indentified by marking pen as to function.
    One has F.A.U. For id what does this stand for ?
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #2

    Aug 27, 2011, 12:48 PM
    Turn the breaker off and see what does not work. That will be what F.A.U stands for.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #3

    Aug 27, 2011, 03:13 PM
    Probably "Forced air unit", or hot air furnace.
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