pilot goes out with new thermocouple

Discussion in 'Water Heater Forum, Tanks' started by ilya, Feb 25, 2011.

  1. ilya

    ilya In the Trades

    Messages:
    105
    Location:
    Akron Ohio
    A gal I've done a little work for has a 7 yr old Richmond water heater. I've replaced the thermocouple but the pilot still goes out after a few hours. Any deas would be appreciated.
  2. Cookie

    Cookie .

    Messages:
    5,658
    Location:
    .
    You need a new gas control valve.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,525
    Location:
    Cave Creek, Arizona
    There can be more than one cause of the pilot going out, and the only way to determine which is the cause would be to watch it in operation. In many cases, if you replace the control valve, you still have the problem. And, I would replace the heater before I would spend time and money on a new gas valve.
  4. DonL

    DonL Banned

    Messages:
    3,981
    Location:
    Houston, TX
    I agree with hj.

    Also make sure the thermocouple is positioned in the flame properly. And that there is no draft causing the pilot flame to go out.

    Have a great day.

    DonL
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