natural gas - Why doesn't my furnace start? Pilot Light ignites

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On my gas furnace, the pilot light is on, but the heat won't turn on. How do I fix this? - Quora

Where Is The Pilot Light On A Furnace? + How To Relight It

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natural gas - Why doesn't my furnace start? Pilot Light ignites and continuous clicking - Home Improvement Stack Exchange

On my gas furnace, the pilot light is on, but the heat won't turn on. How do I fix this? - Quora