Gas Fireplace Pilot Light Goes Out. There are a few things that could cause your fireplace to go out while running. Some of the possible serious reasons for pilot lights to go out include loose or broken gas valves.
The fire keeps on going out about 30mins to an hour. If gas is coming out of the pilot, but it still won't light, the spark igniter could be the problem. Locate and open your fireplace's control panel. Another reason your pilot may cut out could be related to your pilot light flame.
The pilot light was still lit, but the main burner was off.
The fire keeps on going out about 30mins to an hour. Pilot lights will occasionally go out. So my pilot won't light at all. A pilot light is a small gas flame, usually natural gas or liquefied petroleum gas, which serves as an ignition source for a more powerful gas burner.