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The Goodman B1370724 Ignition Control Module is a genuine OEM replacement for GDX120-5 furnaces. This board manages the ignition sequence — governing the igniter, gas valve timing, flame sensing, and safety lockout. When a furnace won't light, short-cycles, or locks out on ignition faults, a failed control module is a common culprit. Restoring the correct module brings back safe, reliable startups.
Control electronics are safety-critical. The OEM Goodman B1370724 is programmed with the exact ignition timing and safety logic your furnace requires. Generic or salvaged boards risk mismatched timing, nuisance lockouts, or unsafe operation. For a control module, OEM is strongly recommended.
Advanced. Requires mapping and transferring wiring harnesses exactly, verifying line voltage, and testing the ignition sequence. Best performed by a licensed HVAC technician. Always shut off power and gas before servicing.
Confirm your furnace is a GDX120-5 before ordering this control module.