Williams P323665 Thermal Cutoff L99H008 verify your specific wiring diagram

verify your specific wiring diagram as fan circuitry is electrically separate from thermostatic circuitry

The Functional Devices RIBM2401SB is a heavy-duty

and Low—allow technicians to fine-tune the CFM across the heat exchanger for optimal temperature rise and latent cooling performance

cap screws should be tightened to 204 in-lb to ensure a secure polyurethane-to-metal bond during operation

Durable Construction: Features a thermally protected motor and air-over cooling to withstand high-heat environments

Williams P323665 Thermal Cutoff L99H008 verify your specific wiring diagramWhen 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