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The Goodman B1370724 is a genuine OEM ignition control module (integrated furnace control board) built for GUPI100-4 gas furnaces. This board is the brain of the furnace: it manages the ignition sequence, monitors flame sensing, controls the gas valve and inducer, and runs the built-in safety diagnostics. When a furnace has no ignition, an erratic blower, or throws flashing fault codes, a failed ignition module is a frequent culprit.
The OEM Goodman B1370724 is programmed with the exact ignition timing and safety logic for your furnace. Universal aftermarket boards require adapter harnesses and reconfiguration and can introduce timing errors. For a control board, genuine OEM is strongly recommended for correct, safe operation.
Moderate (3/5). Requires shutting off power and gas, photographing and transferring multiple wire harnesses to the identical terminals, and mounting the board on its standoffs. Miswiring can damage the board — label every connection. Budget 30–45 minutes and confirm the fault code clears on restart. If you're unsure, consult a licensed HVAC technician.