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**redwire** · 12-25-2021, 04:11 PM

It's actually two electrodes - the flame rod and the surrounding half-shell. Both need to be clean to get decent conductivity for flame detection. The pointy end as well for the igniter spark.
I would use steel wool or 3M scouring pad to clean off soot and oxide etc without leaving debris behind. Sandpaper can leave silicon dioxide (insulator) deposits if you don't clean that off, so they usually say "don't use sand paper!" but I find it's OK if you get the dust off.
The hardest part is not breaking the porcelain.
If you still have problems after a good cleaning, it can be the orifice has food on it and the flame is wonky. Or the wiring has a break in the insulation etc.

12-25-2021, 04:11 PM	#6
redwire Badcaps Veteran Join Date: Dec 2010 City & State: Alberta My Country: Canada Posts: 2,541	Re: Oven DSI igniter cleaning? It's actually two electrodes - the flame rod and the surrounding half-shell. Both need to be clean to get decent conductivity for flame detection. The pointy end as well for the igniter spark. I would use steel wool or 3M scouring pad to clean off soot and oxide etc without leaving debris behind. Sandpaper can leave silicon dioxide (insulator) deposits if you don't clean that off, so they usually say "don't use sand paper!" but I find it's OK if you get the dust off. The hardest part is not breaking the porcelain. If you still have problems after a good cleaning, it can be the orifice has food on it and the flame is wonky. Or the wiring has a break in the insulation etc.