The Lochinvar & A.O. Smith 100307280 is a genuine OEM inlet K sensor designed to deliver accurate temperature monitoring at the water inlet of compatible Lochinvar and A.O. Smith boilers and water heaters. Replacing a worn or failed inlet sensor with the correct OEM part helps maintain precise control system operation, protecting equipment from temperature-related faults and ensuring consistent, efficient performance.
Key Features
- Genuine OEM Lochinvar & A.O. Smith replacement part
- Designed for inlet water temperature sensing on compatible boiler and water heater models
- Ensures accurate temperature signal to the control system
- Direct OEM fit for simplified installation and reliable long-term operation
- Helps maintain equipment efficiency and protects against temperature-related faults
Application
This inlet K sensor is intended for use with select Lochinvar and A.O. Smith boiler and water heater units. Always verify compatibility with your specific model number before installation. Using genuine OEM sensors helps preserve manufacturer warranties and ensures the control board receives accurate readings for safe, efficient operation.
Specifications
- Part Number: 100307280
- Sensor Type: K Sensor – Inlet (AOS)
- Brand: Lochinvar & A.O. Smith
- Part Type: OEM Replacement Sensor








