A.o. Smith 100109677 Gas Control Valve Kit Natural Gas

Product Description

The A.O. SMITH 100109677 is a natural gas control valve kit designed as a direct replacement component for compatible water heater systems. The gas control valve regulates gas flow to the burner assembly, managing ignition sequences and temperature control to maintain reliable water heating operation. This kit is intended for installation by licensed plumbers or qualified HVAC-R technicians performing service or warranty repair on natural gas water heater equipment.

This kit is suited for residential or light commercial natural gas water heater applications where the original gas control valve requires replacement due to failure, fault codes, or end-of-service-life conditions. It is supplied as an OEM-style replacement part, restoring original function without modification to the existing gas train or control wiring.

Key Features

• Natural gas (NG) configuration — not compatible with LP or propane systems without conversion
• OEM-style replacement restores original burner control and temperature regulation function
• Kit format includes components needed for a complete valve replacement service
• Designed for direct drop-in fit on compatible A.O. SMITH water heater models

Compatibility

Designed as an OEM-style replacement gas control valve kit for compatible A.O. SMITH natural gas water heaters. Refer to the unit's data plate and A.O. SMITH parts documentation to confirm fitment before ordering.

Installation Notes

Gas control valve replacement must be performed by a licensed plumber or qualified gas appliance technician in accordance with local codes and the International Fuel Gas Code (IFGC). Shut off the gas supply at the service valve and allow the system to cool fully before beginning disassembly. After installation, test all gas connections for leaks using an approved leak-detection solution before restoring power or relighting the pilot. Do not attempt to repair or disassemble the valve body itself.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Application: Replacement Part

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100109677