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

    Nov 6, 2007, 03:20 AM
    Hum in Interthwerm Electric Furnace
    I have a Intertherm electric furnace in the trailer I just bought the furnace had not been used for sevral years the heating elements still look new but when I flip the breaker on I can hear alow hum, is this normal or something I should worry about.

    Thank You Robin:) :confused:
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 6, 2007, 05:14 PM
    Sounds like a transformer hum which in most cases is normal. Does the heat work? If it does you are OK.
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