Lennox 80W52 Pressure Switch

The Lennox 80W52 Pressure Switch is a critical safety component designed for high-efficiency Lennox furnace assemblies. This OEM Lennox replacement part is factory-calibrated to a -0.60" WC (Water Column) set point, ensuring precise monitoring of the inducer motor draft and venting pressures. Featuring a Single Pole Single Throw (SPST) normal-open configuration and a standard 1/4" barb connection, it is the direct 103247-04 cross-reference for various G series and SLP series gas furnaces. For technicians troubleshooting ignition failures or pressure switch circuit lockout codes, installing this genuine Lennox HVAC furnace pressure switch ensures the system meets the exact static pressure requirements for safe combustion. Using a genuine 80W52 pressure switch prevents the common nuisance trips and pressure fluctuations associated with aftermarket universal parts, maintaining the integrity of the Lennox furnace safety circuit.

Key Technical Benefits:

• OEM Precision: Guaranteed compatibility with Lennox 103247-04 specifications for accurate pressure sensing.
• Reliable Switching: SPST action provides consistent electrical contact and prevents control board fault codes.
• Standardized Installation: Universal 1/4" barb connection allows for a direct fit to existing vacuum lines without modifications.
• Safety Optimized: Specifically rated at -0.60" WC to verify proper flue gas evacuation before the ignition sequence begins.
• Industrial Durability: Engineered to withstand the heat and vibration of inducer motor housing environments.

Frequently Asked Questions by Technicians:

Can I use a universal pressure switch instead of the Lennox 80W52?
While universal switches exist, they often require manual calibration. Using the Lennox 80W52 ensures the -0.60" WC set point matches the manufacturer's safety sequence exactly, preventing potential liability and operation issues.

What are the signs of a failing 80W52 pressure switch?
Common indicators include the inducer motor running without the igniter sparking, or specific diagnostic LED codes indicating the switch is stuck open or closed during the start-up cycle.

Is the 80W52 the correct replacement for Lennox 103247-04?
Yes, the 80W52 is the official Lennox service replacement part for the 103247-04 pressure switch, maintaining all original technical specifications.

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.