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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for ACVC800603BXAB gas furnaces and compatible Goodman/Amana models. Each in-shot burner mixes gas and air to deliver a clean, stable flame to the heat exchanger. Carbon buildup, corrosion, or a distorted burner port causes rough ignition, delayed light-off, or flame rollout — replacing the affected burner restores quiet, efficient heating.
This is the genuine Goodman OEM burner, manufactured to exact factory port geometry for proper flame pattern and crossover lighting. Generic burners may vary in port size and seating, leading to uneven ignition or flame-sensor faults. For consistent performance and warranty compliance, OEM is the recommended choice.
Easy (2/5). A basic repair for a qualified HVAC technician — roughly 20–30 minutes. Always shut off gas and power before service. Note burner orientation, slide out the old unit, seat the replacement, and verify the flame pattern on restart.