Goodman B1809904S Furnace Circuit Board

The Goodman B1809904S Furnace Circuit Board is a reliable replacement PCB that delivers precise furnace control for consistent heating performance. As a Type Circuit Board and HVAC control board, it replaces a failing unit, restoring safe ignition timing, flame sensing, and overall system reliability. This PCB is built to meet OEM specifications, ensuring compatibility with common Goodman control architectures and preserving essential safety features.

Designed for compatibility with GUN050-2B, GUN075-3B, GUN100-4B, and GUN125-5B models, this Goodman furnace control board fits standard harnesses and installations. It serves as a direct replacement furnace PCB to extend the life of your heating system, delivering steady operation, improved reliability, and energy-efficient performance. Ideal for both DIY repairs and professional installations, it minimizes troubleshooting time and downtime.

• Direct replacement for specific Goodman GUN series furnaces: GUN050-2B, GUN075-3B, GUN100-4B, GUN125-5B
• Durable circuit board construction designed for residential HVAC systems
• Improved ignition timing and flame sensing for reliable starts
• Easy installation with standard harness connections and plug-and-play setup
• Optimized for energy efficiency and consistent heating performance