Ao Smith 100111380 Pilot Assembly Natural Gas Water Heater

Product Description

The AO SMITH 100111380 is a natural gas pilot assembly designed as a direct replacement component for residential storage water heaters equipped with HSI (hot surface ignition) control valves. The pilot assembly provides the standing or intermittent pilot flame that the control valve monitors to prove ignition and allow main burner operation. This part is classified as a replacement part for the 200 and 201 Series water heater platforms. Installation is typically performed by a licensed plumber or gas appliance service technician as part of a pilot system repair or control valve service call.

This pilot assembly is used on AO SMITH 200 and 201 Series natural gas water heaters across both 40-gallon and 50-gallon configurations. Compatible model designations include units in the GCV, GCVL, GCVH, XCV, XCVL, GVR, GVRL, XVR, and XGV families. It replaces the OEM pilot assembly on these units when the pilot fails to light, fails to stay lit, or when the thermocouple or pilot hood shows damage. Refer to the model label on the water heater jacket to confirm your unit falls within the 200 or 201 Series before ordering.

Key Features

• Natural gas (NG) rated pilot assembly for HSI-equipped control valves
• OEM replacement part for AO SMITH 200 and 201 Series water heaters
• Fits both 40-gallon and 50-gallon model variants
• Compatible across multiple model families including GCV, XCV, GVR, XVR, and XGV designations
• Direct-replacement design supports straightforward swap-out during field service

Compatibility

Designed for use on AO SMITH 200 and 201 Series natural gas water heaters including models GCVL-40, XCVL-40, GVRL-40, GCV-40, XCV-40, GCVH-40L, GVR-40, XVR-40, XGV-40, GCV-50, XCV-50, GVR-50, XVR-50, and XGV-50.

Installation Notes

Pilot assembly replacement on a gas water heater must be performed by a qualified gas appliance technician or licensed plumber in accordance with local codes and the International Fuel Gas Code (IFGC). Shut off the gas supply at the appliance shutoff valve and allow the unit to cool before beginning disassembly. Do not attempt to modify the pilot orifice or tubing. After installation, verify a stable pilot flame and check all gas connections for leaks using an approved leak-detection solution before restoring the gas supply and returning the unit to service.

Technical Specifications

• Application: Replacement Part
• Fuel Type: Natural Gas (NG)
• Compatible Series: 200 and 201
• Control Valve Type: HSI (Hot Surface Ignition)

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111380