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The B1401014 is a genuine OEM Goodman hot surface ignitor (HSI) for the DMP125-52AB gas furnace and compatible Goodman/Amana/Janitrol models. When the ignition control calls for heat, this element electrically heats to a glowing temperature to ignite the gas at the burners. A failed ignitor is the single most common cause of a furnace that clicks and tries to start but produces no heat, or that locks out after several ignition attempts.
OEM ignitors match the factory resistance, connector, and bracket geometry so the element sits at the correct position over the burner for reliable light-off. Universal/generic ignitors require splicing and manual positioning and can crack or draw the wrong current, causing repeat failures. The genuine part restores factory ignition performance.
Moderate (2/5). Typically a 15–25 minute job: disconnect the ignitor lead, remove one or two mounting screws, and install the new element. Handle the ceramic element only by the bracket — skin oils and finger contact create hot spots that shorten its life. Cut power at the breaker before servicing.