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Flame Rod

Flame Rod

A furnace flame rod is a component in some types of gas furnaces that serves as a sensor to detect the presence of a flame. The flame rod is typically a metal rod that is located near the burner assembly in the furnace. When the furnace is in operation, an electrical current is passed through the flame rod, and if a flame is present, the current will be conducted, signaling to the furnace's control system that the burner is operating properly.

If the flame is not detected by the flame rod, the control system will shut down the furnace to prevent the release of unburnt gas, which can be dangerous. The furnace flame rod should be cleaned periodically to prevent buildup of dirt or other debris, which can affect its ability to detect the flame.

Other HVAC Furnace Parts

Plenum  Heat Exchanger Orifice 

 

 

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