Ao Smith 100113153 Flame Sensor Wire Harness

Product Description

The AO SMITH 100113153 is a flame sensor wire harness designed as a direct replacement component for gas water heater and heating appliance applications. The wire harness connects the flame sensor to the control board or gas valve assembly, carrying the low-current signal that confirms burner ignition and sustains operation. A failed or damaged harness can cause nuisance lockouts, false flame-failure faults, or intermittent burner operation. Licensed plumbers and HVAC technicians replace this harness during service calls where the original wiring shows heat damage, cracking, or continuity failure.

This wire harness is suited for residential and light-commercial gas appliance service where the original flame sensor wiring has degraded. It is intended as an OEM-style replacement that restores the original signal path between the flame sensor and the control circuit. Technicians typically encounter this repair when diagnosing repeated ignition lockouts that do not resolve after replacing the sensor rod itself.

Key Features

• Direct replacement for the original flame sensor wire harness assembly
• Restores proper flame-signal transmission between the sensor and control board
• Designed to match OEM connector and wire configuration
• Addresses intermittent flame-fault codes caused by wiring degradation

Compatibility

Designed as an OEM-style replacement flame sensor wire harness for AO SMITH gas appliances. Consult the unit model label and AO SMITH parts documentation to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician. Before servicing, shut off the gas supply and disconnect electrical power to the appliance. Inspect connector ends for corrosion or heat damage before securing the new harness, and ensure all connectors are fully seated before restoring power. Work should comply with applicable local codes and the appliance manufacturer service documentation.

Technical Specifications

• Product Type: Wire Harness
• Application: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100113153