Trane SWT2124 Rollout Switch

Professional-grade Trane SWT2124 Rollout Switch is a critical safety component designed for furnace combustion monitoring. This flame rollout limit switch features a 180 degrees F open temperature calibration, ensuring rapid circuit interruption if heat escapes the combustion chamber. Engineered with a manual reset mechanism, this Trane OEM replacement part prevents the heating system from re-energizing until a technician inspects for underlying issues such as a cracked heat exchanger or flue blockage. The furnace rollout sensor utilizes a snap-action thermal disc for high-precision switching. This high-limit safety switch is compatible with a wide range of Trane and American Standard gas furnaces, providing a reliable drop-in solution for contractors performing emergency service calls. Its compact housing facilitates easy mounting near the burner assembly for immediate flame detection.

Key Benefits

• Precise 180°F Thermal Cutoff: Protects the blower compartment and internal electronics from excessive heat exposure.
• Manual Reset Safety standard: Forces a manual inspection of the heat exchanger and burner alignment if a trip occurs.
• Snap-Action Switch: Delivers consistent, reliable electrical continuity for 24V control circuits.
• OEM Compatibility: Exact replacement for Trane rollout switch part numbers SWT2124 and SWT02124.

Common Questions

Why does my rollout switch keep tripping?
Repeated tripping often indicates a restriction in the venting system, a clogged secondary heat exchanger, or improper gas pressure settings. Always measure manifold pressure and inspect the flue before replacing the switch.

Can I bypass the SWT2124 for testing?
Testing should only be performed by a veteran technician using a multimeter to check for continuity. Never bypass a flame rollout switch during normal operation, as it prevents carbon monoxide and fire hazards.

Does this switch support 120V circuits?
The Trane SWT2124 is typically utilized in low-voltage safety loops. Refer to your specific service manual to confirm the electrical load requirements for your furnace model.

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.