Reznor 121866 Thermal Switch the York S1-025-26392-011 offers a

the York S1-025-26392-011 offers a drop-in replacement for worn or tripped sensors in residential and light commercial air handlers

By utilizing high-conductivity silver cadmium oxide contacts

this Fenwal wiring harness provides the necessary 6-pin connector to streamline field installations and maintain high-voltage system integrity without the need for custom terminal crimping

It features a 1/4-inch hub bore with a CCW (Counter-Clockwise) rotation as viewed from the discharge side

maintaining the integrity of the safety circuit is non-negotiable

Reznor 121866 Thermal Switch the York S1-025-26392-011 offers aFor veteran contractors servicing industrial heating equipment, the Reznor 121866 Thermal Switch is a critical OEM component designed for high precision fan control and limit protection. This F190 30F thermal thermostat is engineered to monitor internal cabinet temperatures, ensuring the blower activates only when the heat exchanger reaches an optimal 190F. By deactivating the blower once temperatures drop below 30F, this switch prevents the