Lennox 80W58 Pressure Switch 340793-762 Includes high-tensile stainless steel springs

Includes high-tensile stainless steel springs for reliable plunger return and consistent cycling

Technicians should retain the existing mounting bracket from the original Trane furnace pressure switch during replacement

if it fails or trips frequently

maintaining consistent water temperatures and reducing operational stress

Lennox 80W58 Pressure Switch 340793-762 Includes high-tensile stainless steel springsFor service calls involving intermittent furnace shutdowns or inducer blower faults, the Lennox 80W58 Pressure Switch is the direct OEM replacement engineered to maintain system integrity. This single stage air pressure switch features a precise . 75" WC factory setpoint, critical for verifying proper draft and venting before the ignition sequence begins. Designed for compatibility with high efficiency Lennox, Armstrong, and Ducane gas furnaces, this