Lochinvar & A.O. Smith 100110810 Switch 319848-301 Always verify the part number

Always verify the part number on the existing motor housing or the furnace data plate

designed to handle the high operating pressures of modern refrigerants while maintaining a leak-free seal

and steam systems up to 366°F

As a veteran-grade pilot burner assembly with thermopile

keeping the oil in the compressor sump warmer than the coldest part of the system to prevent refrigerant from condensing into the oil

Lochinvar & A.O. Smith 100110810 Switch 319848-301 Always verify the part numberThe Lochinvar & A. O. Smith 100110810 Blocked Inlet Switch is a critical safety component designed for high efficiency gas water heaters and commercial boilers. As an OEM air pressure switch, this part is engineered to monitor differential pressure within the intake system. If the sensor detects an obstruction in the air supplycaused by debris, ice, or improper ventingit immediately breaks the electrical circuit to the control board, initiating a