The York S1-331-09150-000 Control Board Kit is a critical OEM replacement part designed for Simplicity 1A 2/4 stage HVAC systems

which is a standard dimension for several high-capacity ICP and Heil Quaker service valves

When facing a "two-flash" error on the control board

While the indicator can be installed in any position

PennBarry 56334-0 Blower Wheel R-407C The York S1-331-09150-000 Control BoardThe PennBarry 56334 0 Blower Wheel is a high performance centrifugal blower wheel engineered for specific air handling applications requiring precise static pressure and airflow ratings. This double inlet blower wheel features a forward curve blade orientation, optimized for low to medium pressure commercial and industrial ventilation. Constructed from heavy gauge galvanized steel, the 56334 0 ensures structural integrity and corrosion resistance when