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Water Heater Making A Constant Whining Noise?

the 40 gallon water heater in my home is about 7 years old. It just started making this constant whining noise. Is something wrong with it? Does it need maintenance or what?

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  1. Comment by edjumaca
    November 24, 2009 @ 1:27 pm

    The heating electrodes are covered with mineral build up. You need to flush it out and replace the electrodes. There is a big chance of damaging them if you try to scrape them clean.
    Here is one way of cleaning it out.http://www.alpharubicon.com/warlord/elec…

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