In trying to get our natural gas fireplace to redraft, I've gotten the pilot to light. Then the fire starts. After about 2-3 minutes the pilot burns out, which of course shuts the gas valves and the main flames eventually burn out. What could be causing the pilot to burn out?
We have a thermocouple/thermopile based natural gas system. Since I'm able to start the pilot and fire, I assume the electrical circuits/switches are fine.
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