Johnson Controls A421ABC-02 Temperature Control Els PW 17895 Precision Calibration: Features a self-acting

Precision Calibration: Features a self-acting sensor with a 0

"pressure switch stuck open" error codes on the control board

While the adapter provides the physical connection

The York S1-031-01276-000 Liquid Temp Sensor is a precision-engineered HVAC replacement part designed for integration with high-performance York heat pumps and air handling systems

Proper installation ensures the unit meets original manufacturer safety protocols and maintains factory performance standards

Johnson Controls A421ABC-02 Temperature Control Els PW 17895 Precision Calibration: Features a self-actingThe Johnson Controls A421ABC 02 is a professional grade electronic temperature control engineered for high accuracy performance in demanding HVACR environments. Operating on a versatile 120 240 VAC power supply, this single stage SPDT control provides a wide regulation range from 40F to 212F. It serves as the primary digital thermostat upgrade and direct cross replacement for legacy models including the A419ABC 1, A320ABC 1, and A319ABC series. The