Lennox 24W97 Pressure Switch

The Lennox 24W97 Pressure Switch is a critical safety component designed for high-performance monitoring of the ventor motor's vacuum levels. This OEM Lennox furnace part features a precise -.40" WC actuation point, ensuring that the burner ignition sequence only initiates when the inducer fan establishes optimal airflow. Built with a Single-Pole Single-Throw (SPST) configuration, it is rated for 24V AC systems at 5 Amps resistive, making it a reliable direct replacement for failing switches in residential heating units.

For technicians in the field, the 24W97 is engineered for a seamless fit with a 1/4" barb connection, providing a secure interface for vacuum tubing. This furnace pressure switch replacement is compatible with popular Lennox models, including the G40UH and G50 series, and is rated for altitudes up to 7,500 feet. Replacing a faulty switch with this genuine component resolves common ignition failures and pressure switch lockout codes, restoring the system's safety interlock integrity without the need for field calibration.

• System Safety: Precisely monitors inducer fan vacuum to prevent hazardous improper combustion.
• OEM Compatibility: Exact replacement for part number 101231-01, ensuring electrical and mechanical alignment.
• Reliable Switching: SPST normally open contacts designed to withstand the cyclic demands of high-efficiency furnaces.
• Labor Efficiency: Standard 1/4" barb and compact layout allow for quick installation during service calls.

• How do I troubleshoot a 24W97 lockout? Check for crack in the vacuum tubing or blockages in the flue before replacing the switch.
• Can this be used on high-altitude units? This specific switch is rated for 0-7,500 feet; always verify the data plate for higher elevations.
• What does a -.40" WC rating mean? It signifies the specific negative pressure required to close the switch and allow the ignition control to proceed.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.