Description
The Lochinvar & A.O. Smith 100208390 is a genuine OEM replacement pressure switch engineered for use with compatible Lochinvar and A.O. Smith heating and water heating equipment. Pressure switches play a critical role in system safety, monitoring air pressure or draft conditions and signaling the control board to allow or interrupt ignition sequences as needed.
Key Features
- Genuine OEM replacement part — ensures proper fit and function
- Monitors system pressure to protect against unsafe operating conditions
- Designed to integrate seamlessly with compatible Lochinvar and A.O. Smith equipment
- Helps maintain safe ignition sequencing by verifying adequate draft or air pressure
- Reliable switching action for consistent system performance
Application
This pressure switch is intended as a direct OEM replacement for Lochinvar and A.O. Smith boilers, water heaters, and related heating appliances that require part number 100208390. Always verify compatibility with your specific model before installation.
Why Choose OEM Parts?
Using genuine OEM components like the Lochinvar & A.O. Smith 100208390 ensures your equipment operates within manufacturer specifications, helps maintain warranty coverage, and reduces the risk of premature failure associated with aftermarket substitutes.







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