Ao Smith 100093631 Igniter Replacement Kit

Product Description

The AO SMITH 100093631 is a hot-surface igniter replacement kit designed for use in A.O. Smith gas-fired water heating equipment. The kit restores proper ignition function when the original igniter has failed, cracked, or degraded past reliable operation. Hot-surface igniters are a critical component in the ignition sequence of gas appliances — when the igniter fails, the burner will not light and the unit cannot produce heat. This kit is the manufacturer-specified replacement for this ignition position and is installed by licensed plumbers, HVAC technicians, or gas appliance service professionals.

This igniter kit is intended for residential or light-commercial A.O. Smith gas-fired water heaters where the 100093631 is the specified replacement part. It is used in standard gas ignition system service calls where the hot-surface igniter is the diagnosed point of failure. Installers should verify the part number against the unit's service label or parts list before installation to confirm correct fitment for the specific appliance model being serviced.

Key Features

• Manufacturer-specified hot-surface igniter replacement for compatible A.O. Smith gas equipment
• Restores proper ignition sequence in gas-fired water heating systems
• Kit format includes components needed for a complete igniter replacement service
• Direct OEM part number replacement — no modification required

Compatibility

Designed as an OEM-specified igniter replacement for A.O. Smith gas-fired water heating equipment where part number 100093631 is listed as the required or superseding igniter replacement part.

Installation Notes

Installation should be performed by a licensed plumber, gas technician, or qualified HVAC service professional in accordance with local codes and the appliance manufacturer's service documentation. Before beginning work, shut off the gas supply to the appliance and disconnect electrical power. Hot-surface igniters are fragile — handle the igniter element only by its lead wires or mounting bracket and avoid contact with the ceramic element, as skin oils can cause premature failure. Verify the replacement part number against the appliance rating plate or parts list before installing.

Technical Specifications

• Part Type: Hot-Surface Igniter Replacement Kit
• Application: Gas-Fired Water Heating Equipment

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100093631