What causes a B1370208 pressure switch to stay open

Built to withstand rugged mechanical room environments

Adjustments are made via the adjustment screw on the pilot assembly

When should this burner plate gasket be replaced

Is this switch compatible with non-condensing units

Lochinvar & A.O. Smith 100208660 Flow Switch 320735-701 What causes a B1370208 pressureThe Lochinvar & A. O. Smith 100208660 Flow Switch is a critical OEM safety component engineered to monitor fluid velocity within the primary heat exchanger loop. As a veteran grade HVAC replacement part, this liquid flow switch utilizes a high precision #1 paddle assembly to detect consistent water movement, preventing the dry firing of high efficiency boilers. It serves as a direct replacement for WTR2210, WTR2210K, and 100173714 part numbers.