Trane SWT1429 Limit Switch 318423-701 Enhanced Durability: Structural steel design

Enhanced Durability: Structural steel design resists the high-torque stresses common in heavy-duty blower motors

As a specialized HVAC actuator replacement

It is designed for clockwise (CW) rotation when viewing from the motor shaft end

requiring human intervention after a cutout

Durable Bearing System: Premium ball bearings provide superior mechanical longevity and reduced friction in high-heat inducer environments

Trane SWT1429 Limit Switch 318423-701 Enhanced Durability: Structural steel designAs a seasoned technician, you know that a tripped Trane SWT1429 Limit Switch is often the first sign of a restricted heat exchanger or blower motor failure. This 3 prong primary high limit switch is a critical safety component designed to monitor the supply plenum temperature in Trane and American Standard furnaces. Engineered to open the 24V control circuit when internal temperatures exceed safe operating parameterstypically around 175F to 190F