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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM replacement engineered for the AMVC80803BXCA gas furnace and compatible Goodman/Amana 80% AFUE models. In-shot burners deliver the primary gas-and-air flame into the heat exchanger; a warped, rusted, or clogged burner causes rough ignition, delayed light-off, sooting, or short cycling. Installing a fresh OEM burner restores a clean, stable blue flame and safe, efficient combustion.
The OEM B4022700 matches the exact throat diameter, port pattern, and mounting geometry of the original burner, ensuring correct flame carryover and manifold spacing. Generic burners may light unevenly, misalign with the flame sensor and igniter, or fail to seat properly in the burner box — risking nuisance lockouts. For safety-critical combustion components, OEM is the recommended choice.
Moderate — Shut off gas and power, remove the burner assembly, swap the affected burner, and verify flame carryover before returning to service. Replacing all burners in a set at once is recommended. Gas appliance work should be performed by a qualified HVAC technician.