Resideo 50001464-004 Sensor Assembly While some techs use RTV

While some techs use RTV in emergencies

swapping in this natural gas thermocouple is the standard protocol for boiler troubleshooting and maintenance

The G-3-SS is a non-teflon coated rod

Use a cross-pattern tightening method on the bonnet bolts to apply even pressure across the gasket surface

Field Replaceable: Designed for rapid installation with a 4mm Allen wrench

Resideo 50001464-004 Sensor Assembly While some techs use RTVThe Resideo 50001464 004 Sensor Assembly is a critical replacement component for residential and light commercial boiler systems. Designed for technical precision, this 36 inch leadwire sensor provides real time temperature feedback to Honeywell Electronic Aquastat Controllers, including the L7224A, L7248C, and L7248L series. This assembly is a drop in replacement for the 50001464 004 B and includes a pre terminated Molex connector and mounting