York S1-026-39189-000 Fan Center

The York S1-026-39189-000 Fan Center is a specialized HVAC control relay and transformer assembly engineered for high-performance fan management in York residential and commercial air handlers. This OEM fan center integrates a robust 24V AC transformer with a switching relay, providing a localized solution for low-voltage power distribution and direct blower motor control. It facilitates precise sequence timing for fan operations, ensuring optimal airflow and preventing heat exchanger overheating. Rated for 10A current, the S1-026-39189-000 is designed to withstand fluctuating environmental conditions while maintaining reliable switching under heavy inductive loads. For technicians, its compact footprint and clear terminal labeling simplify the retrofitting of existing HVAC blower controls. This unit serves as a critical replacement fan center for maintaining system integrity and air circulation efficiency in compatible York HVAC units.

Key Benefits

• Integrated Control Logic: Combines relay and transformer functions to streamline the signal path for furnace and air handler fan activation.
• Heavy-Duty Switching: Rated for up to 10A, supporting standard and high-static blower motor applications without premature contact wear.
• OEM Compatibility: Exact electrical match for York S1-026-39189-000, ensuring factory-standard performance and mounting hole alignment.
• Enhanced System Protection: Regulates low-voltage circuits to prevent control board damage and maintain safe airflow across heat exchangers.

Common Questions

Can I use this fan center to add air conditioning to a heat-only system?
Yes, this York fan center is frequently used by contractors to provide the necessary 24V control power and relay switching needed to integrate a cooling coil and thermostat into an older heating system.

What are the primary voltage specifications for the S1-026-39189-000?
This unit typically converts 120V primary line voltage to 24V AC secondary control voltage, managing the high-voltage blower circuit through its internal DPDT or SPNO relay contacts.

How do I troubleshoot a failing fan center?
Technicians should check for 24V output on the secondary side of the transformer. If power is present but the blower does not engage upon a call for fan (G terminal), the internal relay contacts may be pitted or failed.

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.