Description
Lochinvar & A.O. Smith 100208404 Pressure Switch
The Lochinvar & A.O. Smith 100208404 is a genuine OEM pressure switch engineered as a direct replacement for compatible Lochinvar and A.O. Smith water heaters and boilers. Pressure switches are critical safety and operational components that monitor system pressure and send signals to the control board to ensure the appliance operates only within safe, designed parameters. Using an authentic OEM replacement guarantees proper fit, function, and long-term reliability.
Key Features
- Genuine OEM replacement part for Lochinvar and A.O. Smith equipment
- Monitors system pressure to protect appliance from unsafe operating conditions
- Designed for direct drop-in replacement — no modifications required
- Ensures proper communication with the appliance control board
- Helps maintain system efficiency and operational safety
- Manufactured to OEM specifications for dependable, long-lasting performance
Application
This pressure switch is intended for use with select Lochinvar and A.O. Smith water heaters and boilers. Always verify compatibility with your specific model number before installation. Consult the equipment’s service manual or contact your distributor for additional application guidance.
Why Choose OEM Parts?
OEM components are built to the exact tolerances and specifications of the original equipment, reducing the risk of premature failure, nuisance trips, or voided warranties. Trust Lochinvar & A.O. Smith 100208404 to restore your system to factory performance.







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