Trane SWT1614 Limit Switch

For mid-to-high efficiency residential and light commercial furnaces, the Trane SWT1614 Limit Switch is a critical safety component designed to manage thermal cycles and protect the heat exchanger. This high-limit switch features a 220°F Open / 190°F Close temperature rating, serving as an automatic reset limit switch that interrupts the burner circuit if the supply plenum temperature exceeds safe operating parameters. As an OEM Trane replacement part, it ensures precise timing for blower activation and burner shutdown, maintaining the narrow differential required for optimal system performance.

The SWT01614 sensor is engineered with a durable bimetal disc for repeatable setpoint accuracy across thousands of cycles. Whether you are troubleshooting a furnace short-cycling issue or performing preventative maintenance on an older air handler, this switch provides the exact thermal response of the original factory component. Its robust housing and quick-connect terminals allow for a direct swap-out in compatible Trane gas furnace burners and heat exchanger assemblies, reducing diagnostic time on the job site.

• Precise Thermal Safety: Factory-calibrated to 220 degrees Fahrenheit open and 190 degrees Fahrenheit close for reliable equipment protection.
• Automatic Reset Logic: Eliminates the need for manual restarts once temperatures return to the 190°F CI (Close on Rise) setpoint.
• OEM Compatibility: Replaces Trane part number SWT1614 and SWT01614 in various residential split systems and air handlers.
• Durable Bimetal Design: Built by Texas Instruments for consistent performance in high-cycle thermal environments.
• Contractor-Grade Reliability: Direct replacement for furnace limit controls to restore sequence of operation and prevent overheating.

What are the signs of a failing SWT1614 limit switch?
Technicians often look for furnace short-cycling, where the burners shut off before the thermostat is satisfied, or blower motor continuous run issues caused by a tripped high limit status.

Is the SWT1614 a manual or automatic reset?
This is an automatic reset limit switch. It will automatically re-close the circuit once the plenum temperature drops to 190°F, allowing the heating cycle to resume without technician intervention.

Will this work in place of other limit switches with different temperature settings?
No, furnace safety controls must be replaced with the exact temperature rating specified by the manufacturer to prevent premature heat exchanger failure or unsafe operating conditions.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.