A.o. Smith 100091384 Manifold Door Assembly Kit

Product Description

The A.O. SMITH 100091384 is a manifold door assembly kit designed for use in water heater service and maintenance applications. This kit provides the manifold door panel and associated hardware needed to restore proper combustion chamber sealing on applicable A.O. SMITH water heater units. The assembly is sized at 18 inches and is configured for use with 220/298 switch applications. Licensed plumbers and HVAC technicians handling water heater service work are the primary installers of this component.

This manifold door assembly kit is intended for residential and light commercial water heater installations where the original manifold door requires replacement due to wear, damage, or failure. It is suited for units requiring an 18-inch manifold door configuration paired with a 220/298 switch setup. Proper fitment depends on confirming the unit model and existing switch configuration before ordering.

Key Features

• 18-inch manifold door sizing for compatible A.O. SMITH water heater units
• Configured for 220/298 switch applications
• OEM-style replacement kit for maintaining combustion chamber integrity
• Includes door assembly and associated hardware as a complete kit

Compatibility

Designed as an OEM-style replacement manifold door assembly kit for A.O. SMITH water heaters requiring an 18-inch door with 220/298 switch configuration. Verify the model number and switch type on the existing unit before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician familiar with water heater service procedures. Shut off the gas supply and allow the unit to cool completely before removing or replacing any manifold door components. Ensure all combustion chamber seals are properly seated after installation and verify there are no gas leaks before returning the unit to service. Local codes and manufacturer guidelines should be followed throughout the repair process.

Technical Specifications

• Size: 18 inches
• Switch Configuration: 220/298
• Component Type: Manifold Door Assembly Kit

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100091384