Ensure the pilot flame is making proper contact with the sensor rod and that you are achieving the required 0

single pole single throw (SPST) mechanism combined with high-conductivity silver contacts to ensure sustained accuracy and durability under heavy electrical loads

Durable Encapsulation: Protects internal snap-action contacts from moisture

this 1 N/O (Normally Open) interlock switch provides reliable mechanical linkage to the main contactor armature

Weil McLain 511-330-097 Ignition Module Els PW 17895 Ensure the pilot flame isThe Weil McLain 511 330 097 Ignition Module is a critical intermittent pilot ignition control engineered for precision in Weil McLain gas boilers. Designed to operate on a 24V circuit, this module serves as the primary electronic ignition controller for a range of atmospheric and sealed combustion units, including the EG, EGH, LGB Series 2, and PFG models. Built by United Technologies (UTEC) under the part number 1003 511 or 1003 611A, it provides