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The AO SMITH 100110744 is an on/off switch designed as a direct replacement part for AO SMITH water heating equipment. This switch provides the operator control needed to power a water heater on or off, serving as a key interface between the user and the unit's electrical or ignition system. Licensed plumbers and HVAC technicians typically handle this replacement as part of routine service or repair when the original switch becomes faulty, damaged, or unresponsive. Its designation as a replacement part means it is built to match the original component's form, fit, and function.
This switch is intended for use in water heating applications where AO SMITH equipment is installed. It suits residential or light commercial service calls where restoring proper on/off control is the goal. The part is appropriate for installation by a qualified plumber or water heater service technician working on AO SMITH branded units that use this specific switch configuration.
Designed as an OEM-style replacement on/off switch for AO SMITH water heating equipment.
Installation should be performed by a licensed plumber or qualified water heater service technician. Always disconnect electrical power to the unit and shut off the gas supply, if applicable, before beginning any service work. Follow all applicable local codes and manufacturer guidelines when replacing electrical control components on water heating equipment.
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