Lochinvar & A.O. Smith 100167807 Board 328140-751 Using a vacuum pressure switch

Using a vacuum pressure switch that meets exact factory specifications is non-negotiable for maintaining the pressure differential required by Goodman and Amana high-efficiency furnaces

This model features a fixed 2

Excessive external static pressure from clogged filters or undersized ducting forces the motor to run hotter

With a 800 PSI working pressure and a 4000 PSI burst pressure rating

Lochinvar & A.O. Smith 100167807 Board 328140-751 Using a vacuum pressure switchThe 100167807 Integrated Control Board functions as the primary logic controller for specific A. O. Smith and Lochinvar high efficiency water heating systems. Engineered to manage critical functions including ignition sequencing, temperature regulation, and safety safety monitoring, this OEM replacement board ensures precise modulation and peak thermal efficiency. It replaces legacy part numbers 100167808 and 9008272005. Designed for the rigorous