Lochinvar & A.O. Smith 100110744 Switch 319848-301 Enhanced Efficiency: Minimizes rotational resistance

Enhanced Efficiency: Minimizes rotational resistance

For contractors performing boiler maintenance or urgent HVAC repairs

12-inch probe length allows for accurate temperature monitoring in larger heat exchanger plenums

OEM Compatibility: Designed by Trane as a direct replacement component

Heavy-Duty Construction: Corrosion-resistant exterior finish designed for demanding outdoor condenser environments

Lochinvar & A.O. Smith 100110744 Switch 319848-301 Enhanced Efficiency: Minimizes rotational resistanceThe Lochinvar & A. O. Smith 100110744 Switch is a critical OEM replacement component designed for integrated power control within high efficiency residential and commercial water heating systems. This water heater power switch resides on the main control panel, providing a direct interface for technicians to verify circuit continuity and manage system states during troubleshooting or routine maintenance. Engineered as a genuine A. O. Smith replacement