Persistent ignition failure often indicates a depleted thermopile or a clogged LP orifice

The York S1-025-37419-000 Limit Switch is a critical OEM safety component designed for precise thermal regulation in York HVAC systems

As a direct replacement for 1013801

this heavy-duty lead assembly is built to withstand high combustion chamber temperatures while preventing nuisance pilot outages

maintaining the necessary pressure differential for safe combustion cycles

Trane SWT4232 Pressure Switch Els PW 17895 Persistent ignition failure often indicatesThe Trane SWT4232 Pressure Switch is an essential OEM SPNO Dual Pressure Switch designed for high performance monitoring in residential and commercial HVAC systems. As a veteran grade Trane replacement part, it is the direct successor to legacy models including C341546P01, PPS10151 2883, and SWT02357. This dual stage assembly features precise calibration with a 0. 50" WC high side and 0. 17" WC low side setpoint, ensuring the inducer motor maintains