Trane SWT1271 Limit Switch extending the service life of

extending the service life of the entire drive assembly

a shorter probe may cause delayed response times

and resistive heating applications

or poor electrical supply—rather than disabling the safety device

Trane SWT1271 Limit Switch extending the service life ofThe Trane SWT1271 is a critical furnace high limit switch designed for HVAC system diagnostics and thermal protection. As a standard OEM replacement part, this auto reset limit switch prevents the heat exchanger from reaching a hazardous open temperature of 180F, cutting off power to the gas valve until the unit cools to its 150F reset point. For technicians troubleshooting furnace short cycling or 4 flash error codes on a Trane or American Standard