Tankless electric water heater makes noise

Discussion in 'Water Heaters and Softeners' started by robertbarnes, Jul 1, 2019.

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  1. Jul 1, 2019 #1

    robertbarnes

    robertbarnes

    robertbarnes

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    I bought a home and the hot water tank was rusted out so I decided to install a tankless water heater. I installed it and it works but after about 3 months i started to hear a loud banging noise when the water was in use. I researched it and most people said it was jackhammering, i think that was the term, and that I had air in the lines. I am wondering how do I fix this if it is air in the lines and if it could be something different than air since it did not do that for the first 3 months.

    Thank you for any help
     
  2. Jul 2, 2019 #2

    FishScreener

    FishScreener

    FishScreener

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    There is air disolved in the water, and it comes out over time. If you have high spots in the line it collects there. And, may be very difficult to remove.
     
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  3. Jul 2, 2019 #3

    robertbarnes

    robertbarnes

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    the water heater is the high spot in my house, i think. do know how i can get the air out?
     

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