Laars Heating Systems 2400-228 Pressure Switch 322838-754 an open circuit or infinite

an open circuit or infinite reading typically indicates a burnt-out solenoid coil

Can a dirty air filter cause this limit switch to trip

Key Benefits OEM Compatibility: Seamlessly serves as the direct replacement for 100167360

and mounting bolts

Laars Heating Systems 2400-228 Pressure Switch 322838-754 an open circuit or infiniteThe Laars Heating Systems 2400 228 Pressure Switch is a critical safety component designed for precise draft monitoring and combustion air verification in high efficiency hydronic systems. This OEM replacement part, also identified as the Pressure Switch Mark II, is engineered specifically for compatibility with Laars Mark II H Series residential and commercial boilers, including models H, HW, and HP (sizes 60 130). As a normally open switch, it