York S1-373-27818-001 Control Module

The York S1-373-27818-001 Ignition Control Module is a non-integrated hot surface ignition (HSI) control designed to manage the critical startup sequence of residential and light-commercial gas furnaces. This OEM replacement, manufactured as the White Rodgers 50E47-843, serves as the central logic unit for directing the gas valve, igniter relay, and flame monitoring circuits. It is specifically engineered for compatibility with York, Coleman, and Luxaire furnace models, including the P1CC, P1UC, and P1UD series. This module features a tri-colored LED diagnostic indicator to streamline troubleshooting on-site, allowing technicians to quickly identify flame signal issues or pressure switch faults. With an input voltage of 18-30 VAC and 120 VAC igniter output, this direct spark ignition alternative maintains high-performance standards by continuously monitoring safety sensors and executing an immediate safety shutdown if an abnormal combustion environment is detected.

Key Benefits:

• Universal Logic Integration: Direct OEM replacement for White Rodgers 50E47-843, ensuring precise timing for gas valve actuation and igniter heat-up cycles.
• Advanced Diagnostics: Features a tri-colored LED indicator that provides real-time fault codes, reducing diagnostic time for field contractors.
• System Compatibility: Built to fit specific York furnace series (P1CC, P1UC, P1UD), maintaining original factory specifications for flame sensing and trial-for-ignition periods.
• Rugged Reliability: Designed to withstand the high-temperature environment of the burner compartment, facilitating consistent performance across thousands of cycles.

Common Questions:

What does the flashing LED on the module indicate?
The tri-colored LED on the York S1-373-27818-001 communicates system status. A green light typically indicates normal operation, while flash sequences in amber or red pinpoint specific failures such as "No Flame Detected" or "Internal Control Fault."

Is this module compatible with indirect flame sensing?
Yes, this control is designed to work with both direct and indirect flame sensing systems, making it a versatile gas furnace part for various HVACR configurations.

Can I use this to replace a different brand's ignition control?
This is an OEM York replacement part. While it crosses to White Rodgers 50E47 series, you should verify the specific unit's wiring diagram and model number before installation to ensure the safety timings match the original equipment.

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.