York S1-025-37499-000 Flame Sensor

The York S1-025-37499-000 Flame Sensor is an essential safety item that is applied in HVAC systems, especially in gas-fired furnaces and heating systems. This sensor is used to check the presence of flame during the burning process to prevent any danger. It functions in a way that it measures the ionization current produced by the flame and sends a signal to the control board. In case no flame is found, the sensor turns off the burner to avoid accumulation of the gas. Some of the advantages of this sensor include the following; safety, reliability, and efficiency in the HVAC systems.