Ao Smith 100093804 Manifold Door Natural Gas

Product Description

The AO SMITH 100093804 is a replacement manifold door designed for natural gas water heater applications. The manifold door serves as the front enclosure panel for the burner assembly area, providing access to the ignition components and helping maintain proper combustion airflow within the unit. This part is intended for TC ignition-equipped water heaters and is installed by licensed plumbers or water heater service technicians during maintenance or repair work on the BFG40T40N model and compatible units.

This manifold door is suited for residential natural gas water heater systems requiring a direct OEM-style replacement of the burner access panel. The part is associated with TC ignition project configurations and is a common service component when the original door is damaged, corroded, or fails to seal correctly around the burner assembly area. Technicians replacing this component typically do so as part of a broader burner compartment service or combustion system inspection.

Key Features

• Direct replacement manifold door for natural gas water heater burner assemblies
• Compatible with TC ignition system configurations
• Designed for use on BFG40T40N model water heaters
• OEM-equivalent fit for reliable burner compartment enclosure
• Supports proper combustion airflow and burner access

Compatibility

This manifold door is identified for use with the AO SMITH BFG40T40N water heater and TC ignition project configurations. Refer to the unit service manual or the existing manifold door part number to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Before servicing, shut off the gas supply to the water heater and allow the unit to cool. Verify that all burner components and ignition wiring are clear of the door seating surface before securing the manifold door in place. Work should comply with applicable local codes and the manufacturer service documentation.

Technical Specifications

• Application: Replacement Part
• Fuel Type: Natural Gas (NG)

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100093804