Gas Hot Water Heater-Temperature control

Discussion in 'Water Heater Forum, Tanks' started by jkcsanchez, Aug 15, 2009.

  1. jkcsanchez

    jkcsanchez New Member

    Messages:
    3
    I own a Rheem gas hot water heater; temperature control dial is set to the lowest setting; water temperature still rises to a dangerous 150 degrees farenheit; Can the temperature control valve be recalibrated or replaced.
  2. Gary Swart

    Gary Swart In the Trades

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    7,298
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    Yakima WA
    Yes it can and probably should be. Of course all of the electronics should be tested before just sticking new parts on and hoping for the cure. A plumber would be able to test everything and then make whatever repairs are necessary.
  3. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    21,802
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    New England
    Depending on the age, it might be under warranty. I'd give them a call. I'd also review the troubleshooting guide in the manual. If you don't have that, you can probably find it on their website.
  4. jkcsanchez

    jkcsanchez New Member

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    3
    Thanks for your prompt responses!
  5. Thatguy

    Thatguy Homeowner

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    1,460
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    MD
    For adults this is a 3rd degree burn in 2 seconds.
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,802
    Location:
    New England
    This is also why my city requires all new WH installations/replacements to have a tempering valve on the outlet. Now, those can go bad, too, but it's a secondary safety measure.

    Having the water that hot has some advantages IF you have a tempering valve...it makes it look like you have a bigger tanks, and will kill any bacteria that may be in the water. It costs more to keep it hot, though.

    [​IMG]
    Last edited by a moderator: Aug 6, 2011
  7. hj

    hj Moderator & Master Plumber Staff Member

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    Location:
    Cave Creek, Arizona
    valve

    IT can be replaced, but should NEVER be recalibrated.
  8. jkcsanchez

    jkcsanchez New Member

    Messages:
    3
    Thanks everyone for the information provided. Since the unit is 8 years old, I've decided to install a new HWH.
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