What is a gas furnace flame sensor?

By Forinfos - 09/09/2025 - 0 comments

A gas furnace flame sensor is part of an electric ignition system that is connected to the gas valve to control the flow of gas to the furnace. A flame sensor can come in both L or straight shapes, and it is part of the furnace burner's basic assembly.

A flame sensor serves a similar function as a thermocouple in a furnace. The key difference between the two components is that a thermocouple is typically only found in furnaces that use a standing pilot light. If a flame sensor is damaged, it is important to wait for the furnace to cool down before replacing it with a new sensor.

Login to Comment

Comments

Be the first to write a comment for this article.

Related Articles

How do you clean a furnace flame sensor? How does a Carrier furnace flame sensor work? What is a gas furnace? Are electric furnaces more expensive than gas furnaces? What is a two-stage upflow on a Ruud gas furnace? What stores sell Amana furnaces? What is a Heil gas furnace? Why should you choose an electric furnace over a gas furnace? Can I convert an oil furnace to a gas furnace? Is the Rheem gas furnace a good quality furnace?

Trending Articles

Did Goldie Hawn and Kurt Russell split up? How does Juliet speak yet say nothing? How can you design blank diploma certificates? How can you attach speakers to a television? Did John Denver get divorced? How do you upload a file to SoundCloud? How can you watch horror movies for free online? How can you get a discount on newly released movies? Is Atlantis real? How is pencil lead hardness graded?