natural gas fireplace nd3630

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    Natural Gas Fireplace model ND3630 pilot light won't stay lit

    I have a Natural Gas Fireplace model ND3630 - I have replaced both the Thermopile and Thermocouple and pilot light will not get past the turning up of the burner knob on the valve to full for to long. It will light and stay lit (Blue Flame only) for a couple seconds and then click the gas...