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The AO SMITH 100110780 is a flue vent sensor kit designed for use in water heater systems where monitoring flue gas conditions is critical to safe operation. This sensor kit provides a replacement solution for the flue vent sensing component, which detects abnormal temperature or combustion conditions and signals the control system to shut down the burner if a fault is present. Licensed plumbers and water heater service technicians are the primary installers of this component.
This sensor kit is suited for residential water heater applications where the flue vent sensor has failed or is producing fault codes. It is installed as part of a service call to restore proper safety monitoring function to the water heater's combustion and venting system. Consult the unit's service documentation to confirm sensor placement and wiring before proceeding with installation.
Designed as an OEM-style replacement flue vent sensor kit for AO SMITH water heater systems. Verify compatibility against the specific unit's model number and service documentation before ordering.
Installation should be performed by a licensed plumber or qualified water heater service technician. Shut off the gas supply and disconnect power to the water heater before beginning any service work. Follow the manufacturer's service documentation for proper sensor placement, connector seating, and wiring routing. Local codes and the manufacturer's installation instructions govern all service procedures.
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