York S1-025-15798-700 Transformer R-410A the internal diaphragm or electrical

the internal diaphragm or electrical contacts have likely failed

System Compatibility: Engineered specifically for Weil McLain GV boilers

Key Benefits: Modular Tank-Apart Design: Simplifies field service by allowing internal components to be swapped without removing the valve body from the system

5-inch resilient rings

York S1-025-15798-700 Transformer R-410A the internal diaphragm or electricalThe York S1 025 15798 700 Transformer is a heavy duty, commercial grade 250VA control transformer engineered for precision voltage regulation in demanding HVACR environments. Designed to handle dual primary voltages of 240V or 480V, this unit provides stable stepped down secondary outputs of 120V or 140V. As an authentic HVAC OEM replacement part, it ensures seamless integration with York and Johnson Controls rooftop units and air handlers,