Search:

Just to clarify, I admit I confused two different elements, the flame sensor (FS), and the hot surface ingnitor (HSI). In my furnace, which has four gas jets, FS sits in the leftmost jet and HSI in...

So I unscrewed what look like a flame igniter (attached photo, have no idea how to insert it like a post above!). The resistance (ohm) between electrode and body (the bracket that screws in) is...

at the unit, it's 20 x 25 x 1, I just replaced mine. Supposedly it should be replaced about every 3 months.

Why the unit above is called "flame-sensor"? I have a Carrier Weather Maker 8000 that's failing to ignite and am trying to diagnose the problem step by step. The closest thing in my setup to the unit...

Why the unit above is called "flame-sensor"? I have a Carrier Weather Maker 8000 that's failing to ignite and am trying to diagnose the problem step by step. The closest thing in my setup to the unit...