York s1-33103009000 2-stage Furnace Control Kit

Product Description

The YORK s1-33103009000 is a 2-stage furnace control board kit designed to serve as the operational hub of a residential gas furnace. The control board manages ignition sequencing, blower motor operation, and staged heating output across both low-fire and high-fire demand levels. Licensed HVAC technicians install this part during control board failure diagnosis or as part of a planned component replacement. The 2-stage design allows the furnace to run at reduced capacity during mild conditions and ramp to full output when demand rises, supporting efficient temperature management throughout the heating season.

This control kit is suited for residential gas furnace applications where 2-stage heating operation is required. It is a factory-matched replacement sourced directly from YORK, making it appropriate for systems where an OEM-specification board is necessary to maintain proper sequencing, fault code compatibility, and thermostat communication. Installers working on YORK-branded furnace systems will find this kit aligns with the original factory configuration rather than requiring aftermarket adaptation.

Key Features

• 2-stage operation supports low-fire and high-fire heating modes for improved efficiency
• OEM-sourced kit ensures factory-matched sequencing and fault code compatibility
• Designed as a direct replacement to minimize field modification during installation
• Controls ignition, blower operation, and staged heat output from a single board
• Kit format includes components needed for a complete control replacement

Compatibility

Designed as an OEM-style replacement for YORK 2-stage residential gas furnace control systems. Consult the equipment nameplate and YORK service documentation to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage control wiring and gas furnace safety protocols. Disconnect electrical power at the disconnect switch or breaker before removing the existing control board. Follow all applicable local mechanical and electrical codes, including NEC requirements for low-voltage wiring. Do not restore power until all wiring connections are secured and the furnace access panel is in place.

Technical Specifications

• Control Type: 2-Stage Furnace Control
• Component Format: Kit
• Application: Residential Gas Furnace

Standard Information

• Brand: YORK
• Manufacturer Part Number: s1-33103009000