Lochinvar & A.O. Smith 100073333 Kit 318973-401 Whether you are performing a

Whether you are performing a mid-winter emergency repair or a pre-season system overhaul

Engineered to replace legacy components like the LH33WZ002

it features advanced diagnostic LED indicators that streamline the troubleshooting process for error codes like E125 or E110

the flow should be directed from Port B to Port A to ensure the paddle closes against the direction of flow

ensuring balanced performance right out of the box

Lochinvar & A.O. Smith 100073333 Kit 318973-401 Whether you are performing aThe Lochinvar & A. O. Smith 100073333 Kit is a specialized FTX HI LOW PRESSURE SWITCH KIT engineered for precise gas pressure monitoring in FTX600 850 heating systems. This OEM certified kit includes both high gas pressure switch and low gas pressure switch components, providing a critical failsafe to protect the boiler heat exchanger and combustion assembly from erratic supply pressures. Featuring a manual reset mechanism, the 100073333 ensures that