AO Smith 100187882 Flame Sensor AssemblyAO Smith 100187882 is a highreliability flame sensor assembly designed for safe, dependable operation in compatible boilers and water heaters. The K flame sensor with gasket 9008928015 provides precise flame detection and a tight seal, helping prevent false readings and leaks while maintaining efficient combustion. This OEM replacement part installs quickly, reduces downtime, and preserves original system performance. Engineered to withstand heat,

Rotation: Counter clockwise lead end

Direct compatibility with AO Smith 9004379115

The unit includes a built-in Fill-Trol valve

Specifications at a glance ensure compatibility and durability in everyday installation:

Seamless compatibility with residential liquid propane gas water heaters

This limit switch regulates furnace operation to prevent overheating and safeguard your heating system

designed to provide automatic water-fill control for residential

Meets ANSI Z21

Voltage: 115V

Type 2-Zone expandable design for scalable control

The valve operates on 24 V AC (50/60 Hz) at 0

Flow: 0–22 GPM