Laars Heating Systems R2008400 Flow Switch 318423-701 it is most effective when

it is most effective when placed in the liquid line

What causes the original York pan to leak

and compressor start circuits requiring a 5 MFD rating

What causes frequent lockout on this ignition module

This part is frequently cross-referenced with component number 209A90

Laars Heating Systems R2008400 Flow Switch 318423-701 it is most effective whenThe Laars Heating Systems R2008400 Flow Switch is a critical safety and operational component designed for high performance hydronic systems. This replacement flow switch regulates fluid movement in demanding environments, ensuring that the burner circuit only energizes when sufficient flow is detected. As a veteran grade Laars boiler part, the R2008400 features a durable paddle style mechanism compatible with various pipe diameters and is a direct