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My husband ran a gas line extention up stairs to the master bedroom and hooked up small gas wall heater. The pilot lights, but wont stay lite. It has been about 20 mins or so now. What could be causing the pilot to keep going out other than air in the line?

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  • David Johnson
    David Johnson May 11, 2010

    it takes a long time to purge the lines of air.

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Make sure that you are holding down the button long enough to heat up the thermocouple before you let go . The thermocouple needs to be hot enough to signal the presence of flame or the gas valve will stop sending gas to the pilot. If you are letting it get hot, but still have the same problem, the unit may have a bad thermocouple. This is the thin copper tube that goes from the gas valve to the pilot.

Posted on Dec 16, 2008

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