Eliminates guesswork by providing an immediate

Operating at a nominal 1075 RPM with a 4-speed configuration

Common Questions Is this a hot surface ignitor or a direct spark ignitor

Attempting to rebuild the motor or replace just the wheel is labor-intensive and prone to failure

Trane SWT3937 Switch 340155-7024 Eliminates guesswork by providing anThe Trane SWT3937 is a precision engineered thermal limit switch designed for critical temperature regulation in HVAC and light commercial applications. This OEM thermal switch features a reliable 125F open and 95F close threshold, serving as a primary safety control to monitor airstream temperatures and prevent overheating conditions. Built with an SPST contact arrangement and an enclosed disc design, the SWT3937 ensures consistent performance with a