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this limit switch is a standard safety component across the Carrier/Bryant/Payne family of residential heating equipment
Durable Material: High-purity silicon carbide element engineered for superior thermal conductivity and ignition reliability
Field Replaceable: Designed for rapid installation with a 4mm Allen wrench
While some techs use RTV in emergencies
swapping in this natural gas thermocouple is the standard protocol for boiler troubleshooting and maintenance
Resideo 50001464-004 Sensor Assembly this limit switch is aThe 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