Engineered with a -1

Precision Control: Features three clear detent positions for accurate mode selection

Automatic Reset: Resets at 160°F to resume normal operation once internal temperatures have stabilized

System Performance: Maintains the correct pressure drop required for the pressure switch to close and the ignition sequence to complete

York S1-2940-3161 Switch Els PW 17895 Engineered with a -1The York S1 2940 3161 Fan and Limit Switch is a critical OEM replacement component designed for precise thermal regulation within HVACR systems. This reliable furnace limit control is factory calibrated with a 105F opening temperature and a 120F closing temperature (105Op 120Cl), ensuring the blower fan cycles correctly to maximize airflow efficiency and prevent heat exchanger overheating. As an HVAC high limit switch, it provides an essential safety