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The Goodman B1370724 Ignition Control Module is a genuine OEM circuit board that governs the ignition and safety sequence of the GUI100-4 gas furnace and compatible Goodman and Amana systems. This module coordinates the igniter, gas valve, flame sensing, and blower timing every heating cycle. When it fails, you may see no ignition, short-cycling, the furnace locking out after several attempts, or an igniter that glows but the gas valve never opens. Replacing the ignition control restores reliable, safe startup.
This genuine Goodman OEM module is programmed with the exact ignition timing, flame-sense thresholds, and safety lockout logic your furnace requires. Generic or universal boards often need rewiring adapters and may not replicate the factory safety timing, risking nuisance lockouts or improper operation. OEM ensures a plug-in match to your existing harness and control sequence.
Moderate — Involves disconnecting the wiring harness, unmounting the old board, and transferring connections one at a time. Cut power at the disconnect and photograph the wiring before removal. Match each connector to the same terminal on the new module. If wiring is unclear, consult a licensed HVAC technician.
Genuine Goodman quality, backed by fast US shipping.