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    big todd 1964's Avatar
    big todd 1964 Posts: 1, Reputation: 1
    New Member

    Oct 27, 2006, 03:40 PM
    Buzzing From Electric Furnace
    I have a Trane heat pump system. As I tried the emergency heat position for the electric furnace, nothing happened but a "buzzing" sound. The tech was here twice and checked control panel, wiring, transformer, etc. Heat pump is fine... just when you turn on to emergency heat - inop. Tech was a Trane dealer. He said he was going to call the manufacturer, but I have yet to hear back. Any suggestions? Thanks
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member

    Oct 27, 2006, 04:05 PM
    Could be a relay going bad, the laminated core can break down and hum. This is uaually a loud hum, and a trainee should be able to find it.

    But sounds like the heating elements are humming themselves.Because of 60 cycle AC, elements that are not supported properly or securely can emit a hum or buzz.

    I will be curious to see what the factory says. And another Trane tech that needs to call the mother ship.
    victoriaann's Avatar
    victoriaann Posts: 1, Reputation: 1
    New Member

    Mar 20, 2012, 06:46 AM
    Last night we heard a buzzing and noise from our bathroom floor under shower. My husband saw a flash of light. What could this be.

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