York S1-1474-0041 Ignition Module

As a veteran in the field, you know that intermittent ignition issues on mid-80s to mid-90s Coleman units often trace back to a failing York S1-1474-0041 Ignition Module. This genuine OEM HSI control board is the designated replacement for Fenwal 1474-001 and Fenwal 1474-002 series modules. It is engineered specifically for direct flame sense systems, meaning it monitors the burner through the igniter itself without a secondary sensing rod. This Coleman furnace ignition control operates on a 120/24V electrical rating, receiving 24V from the thermostat circuit to initiate the high-voltage sequence required for the hot surface igniter.

When swapping out an older Fenwal unit, pay close attention to the terminal configurations. This kit is designed to bridge the gap between early Coleman Evcon "E" models and later production runs. Whether you are dealing with a single-try or three-try ignition sequence, this module provides the precise HVAC burner control timing necessary for safe combustion. Using original York furnace parts ensures the flame rectification signal is accurately processed by the logic circuit, preventing the nuisance lockouts commonly seen with "universal" aftermarket boards that struggle with the specific impedance of older Coleman igniters.

• Direct Sense Compatibility: Purpose-built for York Coleman S1-1474-0041 systems utilizing the igniter as the flame sensor, eliminating the need for external rods.
• Broad Cross-Reference: Directly replaces legacy York 1474-0041 and various Fenwal HSI modules found in residential gas furnaces.
• OEM Reliability: Maintains the original timing and safety parameters for the hot surface ignition module to prevent delayed ignition or gas buildup.
• Streamlined Installation: Features standard 1/4" spade terminals and consistent mounting footprints for quick field replacement in tight cabinets.

Can I use this module if my original Fenwal had a side connector?
Yes. While older Fenwal 1474-001 modules used side connectors, this York S1-1474-0041 replacement utilizes spade terminals. You will need to terminate the existing harness wires with the 1/4" female crimp connectors typically included in these OEM kits.

What should I check if the module gets 24V but won't send 120V to the igniter?
Verify the pressure switch circuit is closed and providing 24V to the 'TH' terminal. If the 'TH' terminal is energized but there is no 120V output across the 'IGN' terminals, the internal relay or logic on the ignition control board has likely failed.

How do I troubleshoot a "no flame" lockout with this module?
Since this is a direct flame sense module, ensure the burner is properly grounded to the furnace chassis. A weak ground prevents the flame rectification signal from returning to the board, causing the module to shut down the gas valve after the trial for ignition.

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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.