Williams P323665 Thermal Cutoff 326010-701 and 266671

and 266671

Maintenance Accessibility: Equipped with a standard pressure tap for accurate gauge readings without breaking the line

Always verify line voltage at the L1 terminal before installing to prevent board damage

Reliable Transition: Provides a secure seal for gas valve manifolds

Does this kit include mounting hardware

Williams P323665 Thermal Cutoff 326010-701 and 266671When you're troubleshooting a Williams wall furnace that won't kick on despite a healthy pilot, the Williams P323665 Thermal Cutoff is a primary failure point to inspect. This genuine OEM Williams furnace part serves as a critical high limit safety switch, designed to interrupt the electrical circuit if internal temperatures exceed safe operating parameters. Specifically calibrated with a 167C (333F) trip point, this thermal link provides non