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The B1370724 is a genuine OEM Goodman integrated ignition control module for GDI125-5 gas furnaces. This board orchestrates the entire ignition cycle — inducer prove, igniter warm-up, gas valve energizing, flame rectification sensing, and safety lockout — ensuring your furnace lights cleanly and shuts down safely on fault. Repeated no-heat calls, ignition lockouts, or intermittent flame-loss codes often trace back to a worn control board.
This genuine Goodman OEM board is programmed to the furnace's factory ignition timing and safety limits — the most reliable long-term choice. Universal replacement boards may physically mount but frequently require field configuration and can trip inconsistently with the GDI125-5 gas valve. For a control module, OEM is strongly recommended.
Moderate — 30–45 minutes. Turn off power and gas, photograph the existing harness, and transfer each low-voltage and line connection exactly to the new board. A nut driver and a clear reference photo are all that's required. If you're not confident with 120V furnace wiring, hire a licensed HVAC technician.
Always disconnect power at the breaker before servicing your furnace.