Weil McLain 511-330-086 Module Freon this thermal control switch is

this thermal control switch is essential for resolving intermittent heating cycles or safety lockout conditions caused by sensor drift or probe failure

A functional coil should typically show a reading between 10kΩ and 12kΩ

Durable Construction: Features a stainless steel sensor probe and a rugged plastic enclosure that meets UL 1995 plenum requirements

This HVAC replacement part is built to OEM specifications to maintain the correct gas-to-air mixture at the pilot orifice

Precise Modulation: Provides accurate 2-10Vdc modulating control for optimized airflow management

Weil McLain 511-330-086 Module Freon this thermal control switch isThe Weil McLain 511 330 086 is a critical pilot proving module engineered specifically for technical integration within Weil McLain LGB boilers. Known by its United Technologies manufacturing designation U T 1003 615, this intermittent pilot control manages the essential sequence of operation by verifying a stable pilot flame before energizing the main gas valve. For technicians troubleshooting ignition lockout or inconsistent firing on cast iron