The Lennox 86H72 190F Limit Switch is a critical safety component designed for high-performance temperature regulation in residential and commercial heating systems

Key Benefits: OEM Compatibility: Replaces obsolete part numbers including CTR2575 and CTR1149 without the need for mounting bracket modifications

Using genuine Sensus parts prevents the common calibration issues associated with aftermarket components

common issues in aging heating systems

Lochinvar & A.O. Smith 100208371 Thermocouple Els PW 17895 The Lennox 86H72 190F LimitMaintaining a reliable pilot flame on high recovery units requires a high performance Lochinvar & A. O. Smith 100208371 Thermocouple. This 36 inch heavy duty water heater thermocouple replacement is engineered specifically for Copper Fin CW 180 270 water heaters and boilers. As a critical safety component, it generates the millivolt signal necessary to hold the gas control valve open during operation. If your burner fails to stay lit or the pilot