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eastern sd | Have a coleman echelon 9c furnace (LP Gas) that will intermittently fail ignition and lock out. I finally caught it doing it tonight and what happens is the first burner will light but the other 3 don't catch so the flame sensor senses no flame and it shuts down and locks out after 3 or so attempts. Usually shutting it off and restarting it gets it going and it works fine. Question is what causes the flame to fail to propagate to the other 3 burners? | |
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Coleman Furnace
