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  1. #1
    Join Date
    Mar 2012
    Posts
    1

    Default New Water Heater Noise

    I just had a new water heater installed and within a few seconds of turning on the hot water, we hear a low rumbling, vibration sound, that will intensify and deintensify within 5-10 seconds. It happens when we use the hot water at any faucet. It also sometimes happens shortly after the hot water is turned off. The water pressure does not seem to be effected.

    I called the plumber and he said in 30 years he has never seen this.

    Looking on the web, the only thing that comes close, is talk of a problems with the heat traps.

    Any advice would be great.

    Thanks
    Last edited by sbrady55; 03-16-2012 at 11:01 AM. Reason: **** should up where I typed "******"

  2. #2
    Join Date
    Aug 2008
    Posts
    94

    Default Re: New Water Heater Noise

    Check the water heater rescue site below for hints on possible causes; once at the site, click onto "Troubleshooting", then onto "Tanklets", then onto "Strange Noises", for a running dialogue of similar problems in other hot water heaters.

    Please post the water heater's mfgr's name & model number.

    If you've hired a plumber or contractor to do the install, it's up to THEM to make the repair & it may take a while with them doing some back & forth visits----does the installer seem to be willing to keep trying to find the problem, & have you paid them for the install???

    Google the mfgr name of the water heater & its model # along with the symptom of "strange noise" to see what you can dredge up via Google search sites.

    Check the piping arrangement that was done during the install & compare with the mfgr's suggested piping scheme diagram (in the brochure that came with the WH, or Google the mfgr name & model # for suggested installation instructions) to make sure no inappropriate component was added or left out during the install---these include a water pressure reducer valve, a partially closed valve, an expansion tank, a check valve , a pressure relief valve, a heat valve, air in the pipes, back-flo preventer valve, a water-softener system, excessive water pressure---this is a long list, but unfortunately, it could be any one of the above compononts or conditions.

    First step (if you want to do your own troubleshooting) is usually to check the house water pressure (high pressure is a common cause of pipe noises (water hammer)---the home improvement stores sell a water pressure gauge you can attach to your outdoor yard faucet, then turn handle to "on" to make sure the WP is at or below 50 psi.


    http://www.waterheaterrescue.com
    Last edited by brewster; 03-16-2012 at 12:50 PM.

  3. #3
    Join Date
    Feb 2012
    Posts
    92

    Default Re: New Water Heater Noise

    Turn on all the taps in the house on hot for about 10 mins to relieve the air out of the taps.

    Ben Franklin Plumbing Of Alpine
    304 Meadowlark Drive, Alpine, UT 84004
    (801) 960-1567 ‎
    www.benfranklinplumbingalpine.com

  4. #4
    Join Date
    Feb 2012
    Posts
    92

    Default Re: New Water Heater Noise

    Also make sure expansion tank was installed and is pumped to match home pressure and make sure your pressure isn't too high.

    Ben Franklin Plumbing Of Alpine
    304 Meadowlark Drive, Alpine, UT 84004
    (801) 960-1567 ‎
    www.benfranklinplumbingalpine.com

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