Lochinvar & A.O. Smith 100208378 4.10″WC Pressure Switch

Description

Lochinvar & A.O. Smith 100208378 Pressure Switch Overview

The Lochinvar & A.O. Smith 100208378 is a genuine OEM pressure switch rated at 4.10″ water column (WC), designed to monitor and verify proper draft or combustion air pressure in compatible water heater and boiler applications. By confirming that the correct pressure conditions exist before allowing ignition to proceed, this switch plays a critical role in safe, reliable equipment operation.

Key Features

• Genuine OEM replacement part from Lochinvar & A.O. Smith
• Rated set point: 4.10″ WC (water column)
• Monitors draft or combustion air pressure to ensure safe ignition sequencing
• Direct drop-in replacement for compatible Lochinvar and A.O. Smith water heaters and boilers
• Helps protect equipment from operating under unsafe pressure conditions
• Engineered for accurate, consistent switching performance

Application

This pressure switch is intended for use in Lochinvar and A.O. Smith residential and commercial water heating and boiler equipment. Always verify compatibility with your specific model number before installation. Consult the equipment’s service manual for proper wiring and mounting procedures.

Why Choose OEM Parts?

Using genuine OEM components like the 100208378 ensures proper fit, function, and longevity. Aftermarket substitutes may not meet the original manufacturer’s pressure tolerances, potentially compromising safety and voiding equipment warranties.