replacing the oxidized rod with this factory-spec HVAC replacement part restores reliable bridge-to-ground continuity and ensures steady burner operation throughout the heating season

it ensures a secure fit on standard motor shafts

35A threshold for consistent contact closure

a direct OEM replacement is the only way to restore reliable operation

the threaded nut ensures a secure fit into the thermopile bracket

McDonnell & Miller 144691 Harness replacing the oxidized rod withThe McDonnell & Miller 144691, also identified as the UWH RB 24 L, is a universal wiring harness engineered specifically for the RB 24E L residential low water cut off. This replacement harness cable provides the essential interface for connecting the RB 24 LWCO to boilers equipped with burner control panel connections. Designed for rapid integration in 24V burner circuits, the UWH RB 24 L eliminates the need for complex field wiring, ensuring a