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Thread: pilot goes out with new thermocouple

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  1. #1
    In the Trades ilya's Avatar
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    Dec 2009
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    Default pilot goes out with new thermocouple

    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.
    not a licensed plumber

  2. #2

    Default

    You need a new gas control valve.

  3. #3
    Moderator & Master Plumber hj's Avatar
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    Default

    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. #4
    Jack of all trades DonL's Avatar
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    Default

    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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