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The Goodman B1370724 Ignition Control Module is the genuine OEM circuit board that manages the entire ignition sequence on the Goodman GUI050-2 gas furnace. It sequences the inducer, energizes the igniter, opens the gas valve, and monitors flame rectification through the sensor. When the furnace clicks but won't light, short-cycles, or locks out after several ignition attempts, a failed control module is the most common culprit.
Ignition boards are safety-critical, so the factory OEM module is strongly recommended. It guarantees the exact firmware timing, connector pinout, and flame-sense thresholds your furnace requires. Universal aftermarket boards demand extensive rewiring and reprogramming and introduce real safety risk if mis-sequenced.
Moderate — the board mounts in the control compartment with plug-in harness connectors, so no soldering is needed, but leads must be transferred exactly per the wiring diagram. After installation, verify a full ignition cycle and flame-sense reading. Cut power at the breaker before servicing; professional installation recommended.