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The Goodman B1401014 Hot Surface Ignitor is the genuine OEM ignition element for DMP100-42AA gas furnaces. When your furnace clicks but won't light — or the blower runs cold — a cracked or worn-out ignitor is the most common cause. This factory-matched HSI restores fast, reliable ignition every heat cycle.
OEM vs. Generic: The OEM B1401014 arrives with the correct bracket, gasket, and connector so it drops into the burner assembly with no adapters. Universal ignitors require refitting the mount and can crack from vibration or mishandling. Silicon carbide OEM elements offer proven durability across thousands of ignition cycles.
Install difficulty: Moderate (2/5) — shut off power and gas, unplug the ignitor connector, remove two mounting screws, and reverse for the new part. Handle only by the ceramic base; oils from fingers shorten element life.