Staff Answer
Sep 27, 2026 - 06:34 PM
On the N400/N500, the gas control sits on top of the fridge box, so to reach the top fitting at the interrupter you usually have to slide the fridge forward a few inches, or reach down through the roof vent if you have enough room. Thread the new thermocouple into the interrupter snug (don't overtighten), then route the other end to the burner so the tip sits in the flame. Heads-up: the 620424 is discontinued now.
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