S1-33103005000 York Control Board Simplicity

The York S1‑33103005000 Simplicity Control Board is the primary OEM replacement board used in York, Coleman, and Luxaire equipment built on the Simplicity platform. This board manages all major furnace and package‑unit functions, including ignition, blower sequencing, safety monitoring, and system communication.

Designed to restore proper operation and eliminate intermittent faults, this board is the correct replacement when units experience issues such as no‑heat, ignition lockouts, blower running continuously, or erratic system behavior.