Description
The York S1-6434432 is a genuine OEM 4-stage control board engineered to deliver precise, reliable management of multi-stage heating and cooling systems for residential and commercial HVAC units. Compatible with a wide range of furnaces, air handlers, and rooftop units, this circuit board ensures smooth, efficient operation across up to four stages — optimizing comfort, energy efficiency, and system longevity.
Key Features
- 4-Stage Control Capabilities — Manages up to four levels of heating or cooling output, enabling stepped staging for better temperature control and lower energy consumption.
- OEM-Grade Replacement — Manufactured by York (part of Johnson Controls), guaranteeing compatibility and performance with original equipment specifications.
- Improved System Stability — Helps maintain consistent HVAC performance, reduces stress on mechanical components, and minimizes short-cycling or uneven heating/cooling.
- Durable Construction and Reliability — Designed for long-term use in demanding HVAC environments, making it ideal for commercial installations, multi-family dwellings, or any setting needing dependable multi-stage control.
- Simplifies Repairs & Upgrades — A direct-fit replacement control board that helps HVAC professionals and technicians restore or upgrade system performance without custom wiring or modifications.






