Ao Smith 100112328 Thermopile Kit

Product Description

The AO SMITH 100112328 is a thermopile replacement kit designed for use in water heaters that rely on a millivolt-based standing pilot system. A thermopile generates a small DC voltage from the heat of the pilot flame, powering the gas valve without any external electrical supply. This kit provides the replacement thermopile assembly needed to restore proper gas valve operation when the unit fails to maintain a pilot or produces insufficient millivolt output. Licensed plumbers and HVAC technicians typically perform this service on residential and light-commercial storage water heaters.

This thermopile kit is suited for standing pilot water heater applications where the thermopile has degraded or failed, causing the gas valve to shut down and the unit to produce no hot water. It is commonly installed during no-pilot or weak-pilot diagnostic calls. The kit format ensures the technician has the correct assembly and any necessary hardware for a complete service repair.

Key Features

• Replacement thermopile assembly for millivolt gas valve systems
• Restores proper millivolt output to the gas valve from the standing pilot flame
• Kit format includes the components needed for a complete replacement
• Designed for standing pilot water heater service and repair

Compatibility

Designed as an OEM-style replacement thermopile kit for AO SMITH standing pilot water heaters using millivolt gas valve systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician familiar with gas appliance service. Shut off the gas supply to the water heater before beginning any disassembly, and allow the pilot assembly to cool completely. Work must comply with applicable local codes and the manufacturer service documentation. Do not restore gas supply until all connections are confirmed secure and leak-tested.

Technical Specifications

• Component Type: Thermopile Kit

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100112328