York S1-031-03498-001 Control Board 320720-756 The motor features high-torque output

The motor features high-torque output to overcome venting resistance and includes a pre-installed gasket to ensure a gastight seal during installation

Technicians typically observe high superheat readings paired with low suction pressure

this genuine Lochinvar T&P gauge offers the precise measurement required for optimal peak performance and regulatory compliance in pressurized vessels

providing the exact factory-specified response curves required for professional-grade temperature management

York S1-031-03498-001 Control Board 320720-756 The motor features high-torque outputThe York S1 031 03498 001 Demand Defrost Control Board is a critical OEM replacement part engineered for high efficiency 14 SEER heat pump systems. As a veteran grade HVAC control board, it is the direct factory successor to the S1 031 03877 000, ensuring seamless integration with York TH4 series units, including models TH4B3622SA, TH4B4822SA, and TH4B6022SA. Unlike standard time temperature defrost boards, this demand defrost module utilizes advanced