Description
York S1-6555128 2-Stage SSE Circuit Board Kit Overview
The York S1-6555128 is an OEM replacement 2-Stage SSE (Single-Stage/Staging) Circuit Board Kit designed for use in compatible York HVAC systems. This kit provides a direct-fit solution for restoring proper system control and staging operation, ensuring your equipment runs as originally intended by the manufacturer.
Key Features
- OEM York replacement circuit board kit for accurate, reliable performance
- Designed for 2-stage system staging and control operation
- Direct OEM replacement — no modifications required for compatible systems
- Restores proper SSE (staging) control functionality
- Engineered to meet York’s original equipment specifications
- Kit format includes components necessary for a complete board replacement
Application
This circuit board kit is intended for use in York residential and light commercial HVAC systems that utilize 2-stage SSE control board configurations. Always verify compatibility with your specific unit model number before installation.
Why Choose OEM York Parts?
Using genuine York OEM replacement parts like the S1-6555128 ensures proper fit, function, and longevity. Aftermarket substitutes may not meet the precise electrical and operational tolerances required by York equipment, potentially voiding warranties or causing system malfunctions.
Installation Notes
- Installation should be performed by a qualified HVAC technician
- Disconnect all power to the unit before beginning any service work
- Refer to the equipment service manual for wiring diagrams and installation procedures
- Verify unit model compatibility prior to ordering






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