Trane SWT1271 Limit Switch By using an authentic York

By using an authentic York replacement part

usually removing the requirement for downstream venting

mixed gases

such as the 12A09 or 12A39

offering technicians a reliable point of isolation that resists vibration and thermal cycling

Trane SWT1271 Limit Switch By using an authentic YorkThe 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