Staff Answer
Sep 28, 2026 - 07:31 AM
On the 600 series, flame is sensed by the electrode, not a thermocouple. If it lights for a few seconds and goes out, check the 61692222 spark sense electrode first. Make sure it's clean, not cracked, and sitting in the flame. If that doesn't fix it, the 61717037 ignition control module is the next most likely part. Both are in stock.
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