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The Goodman B1370724 Ignition Control Module is a genuine OEM control board for GUE120-5 gas furnaces. This module orchestrates the ignition sequence — energizing the igniter, opening the gas valve, monitoring the flame-sense circuit, and locking out on a failed light for safety. When a furnace won't ignite, short-cycles on flame loss, or shows repeated lockout fault codes, a failed ignition module is a frequent root cause.
The B1370724 is a genuine Goodman board programmed with the exact ignition timing, trial-for-ignition, and safety-lockout logic the GUE120-5 requires. Universal ignition boards may not match the furnace's flame-sense thresholds or timing, risking nuisance lockouts or unsafe operation. Because this component governs gas ignition, OEM is strongly recommended.
Advanced — Requires labeling and transferring multiple wire harnesses, matching connector orientation, and verifying flame-sense microamps after startup. This is a gas-safety component; installation by a licensed HVAC technician is strongly advised. Shut off power and gas before servicing.