Ao Smith 100111064 Blocked Inlet Switch

Product Description

The AO SMITH 100111064 is a genuine OEM blocked inlet switch designed for use in AO Smith water heating systems. A blocked inlet switch is a safety device that monitors airflow at the unit's inlet and interrupts operation when airflow is restricted or obstructed. This prevents unsafe combustion conditions and protects the heat exchanger from damage caused by inadequate air supply. Licensed plumbers and HVAC technicians handling water heater service and repair are the primary installers of this component. It ships new in original factory packaging.

This part is intended for use in specific AO Smith residential or commercial water heater models where a blocked inlet switch is a required safety component. It is not a universal or generic replacement. Application is limited to the models and serial number ranges for which it was produced. Consulting factory production records or the unit's wiring diagram before ordering is strongly advised to confirm correct fitment for the specific unit being serviced.

Key Features

• Genuine OEM part sourced directly from AO Smith factory production
• Ships new in original AO Smith factory packaging
• Functions as a safety interlock that detects blocked or restricted inlet airflow
• Interrupts unit operation to prevent unsafe combustion conditions
• Direct replacement designed to meet original equipment specifications

Compatibility

Designed as a model-specific OEM replacement for AO Smith water heating equipment. This is not a universal part. Compatibility is limited to specific models and serial number ranges as defined by AO Smith factory production records. Verify the model and serial number of the unit before installation.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician familiar with water heater safety controls and local codes. Before servicing, shut off power to the unit at the breaker and close the gas supply valve if applicable. Inspect inlet passages for obstructions before replacing the switch to address the root cause of any blockage condition. Follow all applicable local mechanical codes and the manufacturer's service documentation during installation.

Technical Specifications

• Product Type: Blocked Inlet Switch
• Condition: Brand New

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111064