Ao Smith 100112663 Flame Vapor Sensor Kit

Product Description

The AO SMITH 100112663 is a replacement flame vapor sensor kit designed for use in residential and light commercial water heater applications. The flame vapor sensor monitors for the presence of flammable vapors near the base of the water heater and triggers a safety lockout when hazardous conditions are detected. This component is a direct replacement part intended for installation by licensed plumbers and HVAC technicians performing water heater service or repair. Correct sensor function is critical to safe water heater operation and compliance with current safety standards.

This sensor kit is used in residential and light commercial gas water heater installations where flammable vapor ignition resistance technology is present. It is installed as a replacement part during service calls when the original sensor has failed, triggered a fault code, or requires replacement as part of a warranty or recall repair. Installation is performed at the base of the water heater unit in the burner access area.

Key Features

• Direct OEM replacement for AO SMITH water heater flammable vapor sensor assemblies
• Triggers safety lockout upon detection of flammable vapors near the burner base
• Designed for straightforward field replacement during service calls
• Kit format includes sensor and associated components for a complete replacement

Compatibility

Designed as an OEM-style replacement flame vapor sensor for AO SMITH residential and light commercial gas water heaters equipped with flammable vapor ignition resistance systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician. Before beginning, shut off the gas supply and disconnect power to the water heater to eliminate ignition risk. Follow all applicable local codes and the manufacturer service documentation when replacing the sensor. Do not restore power or relight the pilot until the sensor is fully secured and all connections are confirmed.

Technical Specifications

• Application: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100112663