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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for the Goodman/Amana ACVC800803BXAA gas furnace and compatible 80% AFUE models. Each in-shot burner directs the gas-air mixture into a single heat-exchanger tube, producing the crisp, blue flame your furnace needs for efficient, complete combustion. A worn, rusted, or sooting burner causes delayed ignition, rough flames, and nuisance lockouts — replacing it restores clean, quiet heat.
The OEM B4022700 matches the exact port geometry and flame-rod alignment of your factory burner, so ignition timing and flame-sense readings stay within spec. Generic burners are lower cost but can sit at the wrong height in the manifold, leading to flame rollout faults and failed flame sensing. For a heat-exchanger-critical component, OEM is the safe choice.
Difficulty: Easy — A typical 15–25 minute repair. Shut off gas and power, remove the burner box cover, slide the failed burner off the manifold orifice, seat the new B4022700, and confirm flame alignment at startup. Replace all burners as a set if others show wear.