Lochinvar & A.O. Smith 100110810 Switch 319848-301 and steam systems up to

and steam systems up to 366°F

How much should I tighten the 30067030-303 during installation

Durable Construction: Features a bi-metal composition designed to withstand the high-pressure demands of modern HVAC cycles

maintaining thermal accuracy is non-negotiable for system longevity and prevents short-cycling

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

Lochinvar & A.O. Smith 100110810 Switch 319848-301 and steam systems up toThe 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