How to Relight the Pilot in Your Furnace / Heater

Your Pilot Light Is Out

If you notice your pilot light is off, relight it. What is a pilot light? A pilot light is a small gas flame, usually natural gas or liquefied petroleum gas, which serves as an ignition source for a gas burner. Often you can find instructions on how to do this right on the furnace. If they are not, you can always look at the manual that came with your furnace, or on the manufacturer's website online.

Gas Valve Setting

If the pilot refuses to stay on, make sure gas is flowing into the furnace. Make sure the gas valve is set to the “ON” position. If the pilot switch is in the “ON” position but there isn’t gas coming out of the pilot tube, the tube may be clogged. Inspect the gas tube to ensure it is not obstructed.

If the pilot lights but will not stay lit, then you may have a problem with your thermocouple. This may mean your thermocouple needs to be adjusted or replaced. If you have never done this before, we recommend contacting a professional.

Inadequate Gas Supply

The gas supply running through your furnace might have been cut off. This will not allow your furnace to receive the gas needed to supply the warm air you need.

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