Staff Answer
Sep 28, 2026 - 06:25 AM
It could be, but on the 3163 the thermocouple wires are an even more common culprit. The 628119 wire kit fixes a lot of these. Also clean the burner and orifice with alcohol and brush out the flue. If it lights and then goes out, the thermocouple or wires are the likely fix. If it won't light at all, look at the burner and orifice.
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