York S1-031-01971-000 Control Board 326070-701 preventing over-firing or incomplete combustion

preventing over-firing or incomplete combustion

it is designed for high-flow installations requiring reliable fluid temperature regulation

it integrates seamlessly with existing system controls

Maintenance Efficiency: Allows for rapid service of liquid level controls without the need for additional specialized fabrication

which is a direct and identical replacement for the Lennox 10P3301

York S1-031-01971-000 Control Board 326070-701 preventing over-firing or incomplete combustionThe York S1 031 01971 000 Defrost Control Board is a critical OEM replacement part designed to manage heat pump termination and initiate cycles within commercial refrigeration systems and residential HVAC units. This Source 1 technical component functions as the primary logic board, coordinating the reversing valve, auxiliary heat strips, and outdoor fan motor to prevent hazardous ice accumulation on the condenser coils. Engineered for precise