Lennox 69M18 Pressure Switch

Hi-Pressure 640#-M/R Cutout

Lennox 69M18 Pressure Switch | High-Pressure 640# M/R Cutout | OEM Replacement

The Lennox 69M18 Pressure Switch (also referenced as 69M1801) is a genuine OEM high-pressure switch designed to maintain safe operation in Lennox HVAC systems. Engineered for reliable performance, this pressure switch protects compressors and other system components by triggering cutout at 640# M/R high-pressure levels, ensuring efficient and safe system operation.

Perfect for replacing worn or faulty switches, this OEM part guarantees compatibility with Lennox units and restores proper system control.

Product Highlights

• Genuine Lennox OEM Pressure Switch

• High-pressure cutout: 640# M/R

• Model/Part #: 69M1801

• Catalog #: 69M18

• Ensures safe operation of compressors and HVAC components

• Direct OEM replacement for Lennox units

Specifications

• Brand: Lennox

• Part Number: 69M18 / 69M1801

• Type: High-Pressure Cutout / Pressure Switch

• Base Unit of Measure: Unit(s)

• EAN / UPC: 66255140956

• Application: HVAC System Safety & Control

Description

The Lennox 69M18 Pressure Switch is designed to monitor high-pressure conditions in Lennox heating and cooling systems. When system pressure exceeds 640# M/R, the switch safely cuts out operation to prevent damage to the compressor or other components. Using this OEM replacement ensures reliable system protection, compliance with manufacturer specifications, and long-term HVAC performance.