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ichudov's avatar
ichudov
Explorer
Jul 02, 2017

Norcold refrigerator "NO FL" code, propane burns fine

I have a norcold refrigerator in my Monaco Windsor motorhome. 1) It works fine on AC 2) When run on propane, it gives a "NO FL" error 3) When performing diagnostics, I was watching the flame as s...
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Chris_Bryant's avatar
Chris_Bryant
Explorer II
Jul 02, 2017
Clean the burner (just because), remove the electrode, Check continuity- if the wire comes loose in the ceramic, it will still fire the spark, but not sense the flame.If that is good, wipe the ceramic part down with silicone spray, lightly sand the tip, reinstall with a 3/16" gap- I use a drill bit as a gauge.

The flame is sensed by a ~30 micropamp current which actually flows through the flame- no thermocouple. As Jim said- any resistance is bad.

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