Ao Smith 100111329 Switch Relay Kit

Product Description

The AO SMITH 100111329 is a switch relay kit designed for use in water heating systems. Switch relay kits control the switching of electrical loads within the appliance, translating low-voltage signals into actions that energize or de-energize heating elements, burners, or auxiliary circuits. This kit provides the components needed to restore proper relay switching function when the original relay has failed or become unreliable. Installation is typically performed by a licensed plumber or water heater service technician.

This relay kit is suited for residential and light commercial water heater applications where the original switching relay has degraded or failed. It restores the control circuit to factory-specified operation, allowing the heater to cycle correctly and respond to thermostat or control board signals as intended.

Key Features

• Complete kit format includes relay and associated switch components for a full repair
• Restores proper low-voltage switching control in water heating systems
• OEM-style replacement designed to match original component fit and function
• Supports reliable cycling of heating elements or burner circuits

Compatibility

Designed as an OEM-style replacement switch relay kit for AO SMITH water heating systems. Verify fitment against the specific model and serial number of the unit being serviced before ordering.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Disconnect electrical power and, for gas units, shut off the gas supply before beginning any service work. Follow all applicable local electrical codes and manufacturer service procedures when replacing relay components. Do not energize the unit until all wiring connections are secure and the access panel is reinstalled.

Technical Specifications

• Component Type: Switch Relay Kit

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111329