Flame Sensors & Hot Surface Igniters.
Nordyne/Miller/Intertherm Igniter/Flame Sensor (FM-903110)
This igniter has been redesigned; it may look different, but the new design installs the same and will have a much longer life. An igniter glows to light a flame on the burner. It is also a flame sensor and will send a signal to the control board to shut down the furnace if no flame is detected. Do not touch with bare hands while installing.