York S1-7681-317P/A Control Board

The York S1-7681-317P/A Control Board is the critical OEM replacement lower control board designed for specific York, Luxaire, and Coleman furnace models. This HVAC integrated furnace control manages essential sequencing, including inducer motor performance, igniter timing, and blower motor speed control. Engineered as a direct mechanical and electrical substitute for the legacy part number 7681-317P, this assembly includes the wiring harness to ensure a seamless drop-in installation without field-modifying the existing low-voltage circuitry. It functions as the primary furnace circuit board logic center, monitoring safety strings and flame rectification signals to prevent short-cycling and ensure stable combustion blower operation during high-demand heating cycles. For technicians troubleshooting intermittent ignition failures or component communication errors on single-stage gas furnaces, this genuine source 1 part provides the precise voltage regulation required for consistent furnace troubleshooting and system longevity.

• Direct OEM Replacement: Ensures exact fitment and electrical compatibility for York 7681-317P legacy boards.
• Integrated Harness: Minimizes installation time and reduces potential point-of-failure issues at the terminal connections.
• Enhanced Diagnostics: Facilitates rapid HVAC repair by providing reliable control over sequences and safety limit monitoring.
• Microprocessor Reliability: Delivers precise logic for gas valve modulation and blower delays to optimize airflow.

Common Questions

Is the wiring harness included with this board?
Yes, the S1-7681-317P/A is supplied with the necessary harness to accommodate the physical layout of the lower control board housing, ensuring secure multi-pin connections.

Will this board resolve common "no heat" calls?
If your diagnostics indicate a failure to energize the hot surface igniter or inducer motor despite correct input voltages, replacing the integrated furnace control is the standard solution.

Is this compatible with other brands?
While manufactured by York, this board is the correct service part for several brands within the JCI family, including Luxaire and Coleman furnaces specifying this part number.

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.