Pay in 4 interest-free payments of $6.23 Learn more
Ships within 48 hours · Estimated delivery Sep 3 - Sep 8
ensuring the part is jobsite-ready for licensed contractors
Directional Rotation: Verified CW rotation matches Reznor replacement parts standards for specific series
Safety Notice – Proposition 65
Indicators include audible bearing noise from the drive
Lennox 15P85 Pressure Switch 318423-701 ensuring the part is jobsite-readyThe Lennox 15P85 Pressure Switch is a critical safety component designed for precise combustion air pressure monitoring in HVAC systems. Specifically calibrated with a 0. 55" WC set point (Water Column), this OEM replacement part (also identified by part number 105078 01 and 101859 07) ensures that the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed. Engineered for reliability in Lennox gas furnaces, this