Ao Smith 100111372 Lp Gas Control Valve Thermostat

Product Description

The AO SMITH 100111372 is a liquid propane gas control valve and thermostat assembly with integrated lead wires, designed for residential water heater service. This combination valve regulates gas flow and water temperature in LP-fired hot side storage water heaters, serving as a direct replacement for the original factory component. The assembly includes lead wires, which simplifies reconnection during swap-out. Licensed plumbers and water heater service technicians are the primary installers of this part. It is rated for liquid propane fuel and is not compatible with natural gas applications.

This gas control valve and thermostat is used on AO SMITH Series 200 and 201 water heaters operating on liquid propane. Compatible models include GCVL-40, XCVL-40, GCV-40, XCV-40, GCVH-40L, GCV-50, and XCV-50. It is intended as a replacement part when the original control valve fails to maintain set temperature, leaks gas, or causes ignition faults on hot surface ignition systems.

Key Features

• Liquid propane rated gas control valve — not for natural gas use
• Integrated thermostat function regulates stored water temperature
• Includes pre-attached lead wires for direct reconnection
• Designed as an OEM-style replacement for Series 200 and 201 units
• Compatible with HSI control valve applications on listed models

Compatibility

Fits AO SMITH Series 200 and 201 liquid propane water heaters, specifically models GCVL-40, XCVL-40, GCV-40, XCV-40, GCVH-40L, GCV-50, and XCV-50.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician in accordance with local codes and the appliance manufacturer instructions. Shut off the gas supply at the service valve and allow the appliance to cool before removing the existing control valve. Verify all gas connections are leak-tested with an approved solution after installation before returning the unit to service. Do not modify or adapt an LP valve for use with natural gas.

Technical Specifications

• Fuel Type: Liquid Propane (LP)
• Application: Replacement Part
• Compatible Series: 200, 201
• Ignition System Type: Hot Surface Ignition (HSI)

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111372