a stuck contact in the time delay relay is a common culprit

a round capacitor can replace an oval one

making it a staple for contractors requiring a 7-day programmable timer that can withstand rigorous field use

While the electrical specifications are identical

Weil McLain 511-330-079 Ignition Module THPU32HP7Y a stuck contact in theUpgrade your system restoration with the Weil McLain 511 330 079 Ignition Module, a critical component for maintaining precise sequence control in CGA Series gas boilers. Engineered as a direct OEM replacement ignition control, this module (model UT 1107 2) operates on a 120V power supply to manage consistent spark to pilot ignition cycles. Designed for professional HVAC contractors, it replaces failing boards in residential hydronic systems to