Connecting it to a 120V line will damage the internal motor and control components

Enables precise airflow control to maintain proper combustion air-to-fuel ratios

What is the direct replacement for the obsolete R40E289M

ensuring no modifications are needed to the refrigerant lines

intermittent motor operation

Lochinvar & A.O. Smith 100173748 Cut-Off Els PW 17895 Connecting it to a 120VThe Lochinvar & A. O. Smith 100173748 is a critical Low Water Cut Off (LWCO) safety control designed to protect hydronic and steam systems from dry fire conditions. Functioning as an Auto Reset sensor, this component continuously monitors the boilers water level and breaks the 24V control circuit to the burner if a low water threshold is detected. This specific HVAC replacement part is essential for maintaining operational safety in residential and