A.o. Smith 100302557 Leak Sensor Harness 120V

Product Description

The A.O. SMITH 100302557 is an OEM leak sensor harness designed for use in A.O. SMITH water heating systems. This wiring harness connects the leak detection sensor to the control system, allowing the unit to monitor for water leakage and trigger the appropriate shutdown or alert response. It is an original manufacturer component, ensuring proper fit and function within the water heater assembly. Licensed plumbers and HVAC technicians are the typical installers for this type of replacement part.

This harness is intended for residential and light commercial water heater applications where leak detection is integrated into the control system. It is used during service calls when the existing harness shows signs of damage, corrosion, or failed continuity that prevents the leak sensor circuit from operating correctly. Using an OEM part ensures the harness meets original wiring and connector specifications.

Key Features

• Original OEM component manufactured by A.O. SMITH
• Designed for leak sensor circuit integration within the water heater control system
• Direct-fit replacement for compatible A.O. SMITH units
• Maintains original connector and wiring configuration for reliable reinstallation

Compatibility

Designed as an OEM-style replacement harness for A.O. SMITH water heaters equipped with integrated leak detection sensor systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician. Before servicing, shut off power to the water heater at the breaker and allow the unit to cool if it has been in operation. Disconnect the existing harness carefully, noting connector orientation before removal. Reinstall the new harness using the original routing to avoid contact with hot surfaces or moving components.

Technical Specifications

• Voltage Rating: 120 volts
• Component Type: Leak Sensor Wiring Harness
• OEM Status: Original Equipment Manufacturer part

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100302557