Lochinvar & A.O. Smith 100208665 Low Water Cutoff Refrigerant The manufacturer recommends a full

The manufacturer recommends a full inspection and part replacement using this kit during the annual boiler service to maintain thermal efficiency and reliable operation

Operating on a 24 VAC input

the switch is defective and must be replaced to restore heating operation

This L140 cutout limit switch is engineered to open the electrical circuit when internal plenum temperatures reach 140°F

this RIB relay provides reliable switching for pilot duty loads

Lochinvar & A.O. Smith 100208665 Low Water Cutoff Refrigerant The manufacturer recommends a fullThe Lochinvar & A. O. Smith 100208665 Low Water Cutoff is a critical safety component designed for high efficiency hydronic boilers and water heating systems. This probe style LWCO provides essential dry fire protection by monitoring the water level within the heat exchanger. If a low water condition occurs, the sensor interrupts the burner circuit to prevent catastrophic equipment failure. Engineered as an automatic reset Low Water Cutoff, it