Ao Smith 100109290 Fv Pilot Assembly 180 Degrees

Product Description

The AO SMITH 100109290 is a flued vent (FV) pilot assembly rated for 180 degrees F applications in residential and light-commercial water heating systems. The pilot assembly generates and sustains the ignition flame that signals the main gas valve to open, keeping the burner lit during normal operation. Designed as a direct OEM-style replacement component, this assembly is installed by licensed plumbers and gas appliance technicians as part of a standing-pilot gas control system. The 180 degrees F temperature rating ensures proper operation within the thermal limits of the host appliance.

This pilot assembly is suited for heating applications where a standing pilot ignition system is used. It is a common service replacement item encountered during water heater maintenance, burner troubleshooting, or control system restoration. Technicians typically replace this component when the pilot will not stay lit, thermocouple-related shutdowns are confirmed to originate at the pilot assembly, or the assembly shows physical damage or corrosion.

Key Features

• Rated for 180 degrees F heating applications
• Flued vent (FV) configuration for gas-fired appliances
• OEM-style replacement for standing-pilot gas control systems
• Supports pilot flame generation and main burner ignition signaling

Compatibility

Designed as an OEM-style replacement pilot assembly for AO SMITH flued vent gas water heaters and heating appliances using a standing-pilot ignition system rated at 180 degrees F.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance technician in accordance with local codes and the appliance manufacturer service documentation. Shut off the gas supply and allow the appliance to cool completely before removing the existing pilot assembly. Verify the replacement assembly matches the original configuration before reconnecting gas lines. Follow all applicable local and national fuel gas codes, including IFGC guidelines, when completing the repair.

Technical Specifications

• Application: Heating
• Temperature Rating: 180 degrees F
• Vent Type: Flued Vent (FV)

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109290