Source1 3103882000 Main Furnace Control Board 80% Replacement S1-03103882000

Product Description

The Source1 3103882000 is a main furnace control board designed for 80% efficiency gas furnaces. This OEM replacement part serves as the central processing unit of the furnace, coordinating ignition sequences, blower motor operation, gas valve control, and safety circuit monitoring. HVAC technicians rely on main control boards like this one to restore full furnace function after board failure caused by power surges, age, or component burnout. The board receives signals from thermostats, pressure switches, limit switches, and flame sensors, then directs the furnace through each stage of the heating cycle. When a control board fails, the furnace may not ignite, may short-cycle, or may shut down entirely. Replacing the board with a direct OEM part eliminates compatibility guesswork and restores factory-level performance. This Source1 control board is engineered to match the original specifications of York furnaces, ensuring that all safety lockouts, timing sequences, and diagnostic functions operate exactly as designed. HVAC professionals working on residential and light commercial heating systems will find this board a reliable drop-in replacement. Using genuine OEM controls also supports accurate fault code diagnostics, which helps technicians identify secondary issues faster and reduces repeat service calls. Whether troubleshooting a no-heat call or completing a planned board replacement, this part supports efficient, code-compliant furnace repair. It is compatible with 80% AFUE furnace models that originally used the S1-03103882000 board, making it a go-to part for York-brand furnace service work.

• OEM main control board for 80% efficiency gas furnaces
• Coordinates ignition, blower, gas valve, and safety circuit functions
• Direct replacement for York S1-03103882000 control board

Product Highlights

The Source1 3103882000 main furnace control board is a direct OEM replacement for York 80% efficiency furnaces, restoring full heating system control with factory-tested compatibility and reliable safety circuit performance.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 3103882000

Technical Specifications

• Product Type: Control Board
• Application: Furnace
• Position: Main
• Efficiency Rating: 80%
• Replaces Part Number: S1-03103882000