Weil McLain 511-330-221 Burner Assembly Els PW 17895 12" WC set point and

12" WC set point and technical footprint

chilled coils

How do I verify if the switch is actually bad

inspect the pressure switch tubing for cracks or moisture buildup

leading to increased amp draw on the blower motor

Weil McLain 511-330-221 Burner Assembly Els PW 17895 12" WC set point andThe Weil McLain 511 330 221 is a Natural Gas Pilot Burner Assembly designed specifically for heavy duty commercial and residential atmospheric boilers. This OEM ignition component is engineered for compatibility with Weil McLain LGB, EGH, and PFG series boilers, specifically targeting unit sizes 13 through 23. Technicians will recognize this as a critical intermittent pilot ignition replacement part that ensures stable flame rectification and