York S1-031-01955-000 Timer Board

For service technicians and contractors maintaining York, Coleman, or Luxaire equipment, the York S1-031-01955-000 Timer Board is the critical OEM replacement for managing CFM output and blower timing sequences. This CFM/Fan Timer Board serves as the central control logic for residential furnaces and air handlers, utilizing a 24V AC interface to synchronize fan "on" and "off" delays. By regulating the blower motor timing, this board ensures the heat exchanger reaches optimal temperatures before airflow begins and extracts all residual thermal energy before the cycle terminates. Engineered for precise HVAC airflow control, it effectively monitors the system's Cubic Feet per Minute (CFM) to maintain static pressure and maximize efficiency across heating and cooling modes. This furnace control circuit board is a direct replacement for legacy units requiring specific timing durations, eliminating common issues like short-cycling or improper fan speeds. Rely on this Source1 OEM part for a drop-in installation that maintains original equipment specifications without the need for field modifications.

• Precise CFM Regulation: Optimizes blower performance to ensure consistent airflow and improved indoor air quality.
• Synchronized Timing Logic: Features factory-set delays that prevent the distribution of cold air during the start of the heating cycle.
• OEM Compatibility: Designed specifically for York, Coleman, and Luxaire systems for reliable electrical communication.
• Efficient Thermal Extraction: Extends blower operation post-cycle to utilize remaining heat or cooling, increasing overall SEER/AFUE performance.
• Professional-Grade Durability: Built to withstand the high-temperature environment of the furnace blower compartment.

What are the symptoms of a failing S1-031-01955-000 timer board?
Common signs include the blower motor failing to start, the fan running continuously regardless of thermostat signal, or intermittent airflow delays that disrupt the heating or cooling sequence.

Does this board control the inducer motor or just the main blower?
This specific model is primarily focused on the fan timing and CFM selection for the main blower motor, working in tandem with the primary ignition control to manage the sequence of operation.

Is this a universal fan timer?
No, this is a dedicated Source1 OEM replacement designed to match the specific voltage and timing requirements of York-manufactured equipment. Always verify your model number prior to installation.

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.