York S1-6187677 Ignition Board

The York S1-6187677 Ignition Board is a high-performance, 2-stage 24V spark ignition control designed for precise combustion management in residential and light commercial gas furnaces. As a genuine OEM replacement part, it is the direct successor to the S1-025-35304-000, ensuring seamless integration with original wiring harnesses and mounting footprints. This module is engineered to handle multi-stage heating sequences, managing intermittent pilot ignition, flame rectification sensing, and safety lockout protocols to prevent unburned gas accumulation. For technicians troubleshooting furnace ignition failure or intermittent "no heat" calls, this board provides the factory-spec reliability required to restore system integrity. The S1-6187677 is compatible with a wide range of Johnson Controls brands, including York, Coleman, Luxaire, and Evcon, making it a versatile HVAC control board replacement for service vans. Its robust design ensures consistent spark energy and reliable flame monitoring, even in high-demand heating applications.

• Direct OEM Compatibility: Engineered as a drop-in replacement for S1-025-35304-000, eliminating the need for field modifications.
• Multi-Stage Performance: Supports 2-stage furnace operation for improved temperature control and equipment efficiency.
• Advanced Safety Logic: Features integrated safety lockout and flame rectification to ensure safe burner operation.
• Versatile Application: Validated for use across York, Luxaire, and Coleman gas-fired heating systems.
• Technical Reliability: High-durability circuitry designed to withstand the thermal cycling of modern HVAC cabinets.

• What does this board replace? It is the official replacement for legacy part number S1-025-35304-000.
• Does this support hot surface ignition (HSI)? No, this is a 24V spark ignition control module; verify your igniter type before installation.
• How do I troubleshoot a lockout? Ensure a solid common ground and check for proper microamp signal from the flame sensor to prevent nuisance trips.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.