Ao Smith 100109906 Igniter Replacement Part

Product Description

The AO SMITH 100109906 is a replacement igniter designed for use in water heating systems where reliable ignition is critical to safe, consistent operation. The igniter serves as the spark or glow source that initiates combustion in gas-fired water heaters, ensuring the burner lights properly during each heating cycle. This type of component is typically installed or replaced by licensed plumbers or HVAC technicians during routine maintenance or emergency service calls when ignition failure is diagnosed.

This igniter is suited for gas-fired residential water heater applications where the original igniter has failed or shows signs of wear. It is engineered as a direct replacement part, making it appropriate for service professionals performing in-field repairs on AO SMITH water heater units. Proper ignition components are essential to system safety and efficiency, and replacing a worn igniter restores normal burner operation.

Key Features

• Direct replacement igniter for AO SMITH water heater systems
• Restores reliable ignition and burner startup performance
• Designed for in-field serviceability by licensed trade professionals
• OEM-style replacement part for accurate fitment

Compatibility

Designed as an OEM-style replacement igniter for AO SMITH gas-fired water heaters. Verify the part number against the unit's service label or parts manual before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician. Before servicing, shut off the gas supply and disconnect electrical power to the water heater. Follow all applicable local codes and manufacturer service procedures. Do not restore power or gas until all connections are confirmed secure and the access panel is reinstalled.

Technical Specifications

• Type: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109906