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The AO SMITH 100112469 is a relay kit designed as a replacement electrical component for water heater systems. A relay functions as an electrically operated switch, enabling low-voltage control signals to operate higher-voltage circuits within the heating system. This kit provides the components needed to restore proper switching and control function when the original relay has failed. Licensed plumbers and HVAC technicians are the typical service professionals who install this part during water heater electrical troubleshooting and repair.
This relay kit is suited for use in residential and light commercial water heater applications where AO SMITH units require relay replacement. It is intended for use during service calls where the relay is identified as the cause of control or ignition circuit failure. The kit format ensures the installer has the necessary components to complete the repair in a single service visit.
Designed as an OEM-style replacement relay kit for AO SMITH water heaters. Refer to the unit service manual or AO SMITH technical support to confirm fitment for your specific model before ordering.
Installation should be performed by a licensed plumber or qualified HVAC technician familiar with water heater electrical systems. Disconnect power to the unit at the breaker before beginning any electrical component replacement. Follow all applicable local electrical codes and the manufacturer service documentation when replacing relay components. Inspect surrounding wiring and control boards for damage before completing reassembly.
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