Carrier 338096-707 Limit Switch Assembly

The Carrier 338096-707 Limit Switch Assembly is a critical safety component designed for precise thermal monitoring within high-efficiency Carrier, Bryant, and Payne gas furnaces. This genuine OEM replacement part features a Therm-O-Disc 60T11 series disc-style switch with a normally closed circuit. It is engineered to automatically interrupt the electrical path if internal plenum temperatures reach the 200°F cut-out threshold, preventing heat exchanger damage and ensuring safe operation. The switch is designed with an automatic reset function that restores the circuit once temperatures drop back to the 180°F cut-in point.

As a factory-authorized limit switch, this assembly maintains the rigorous performance standards required for modern HVACR systems. The compact 2-inch design allows for direct mounting, typically integrating into the main limit switch assembly position to monitor airflow obstructions or blower failure. This part replaces several legacy components including L200-20F and 60T11 configurations. For contractors, utilizing Carrier furnace safety switches like the 338096-707 ensures compatibility with the control board logic and maintains the system's UL certification during service calls.

• Precise Thermal Protection: Features a factory-calibrated 200°F open and 180°F close differential for accurate safety cycling.
• OEM Compatibility: Guaranteed fit for select 59MN, 59SC, and 926TA series condensing furnaces.
• Reliable Construction: Manufactured by Therm-O-Disc for high-cycle durability in demanding residential applications.
• Direct Integration: Includes the necessary mounting gasket to ensure a zero-leak seal against the furnace cabinet.

What causes this limit switch to trip frequently?
Repeated cycling usually indicates a restriction in airflow, such as a dirty 1-inch filter, a failing blower motor, or restricted secondary heat exchanger fins.

Is this an automatic or manual reset switch?
The 338096-707 is an automatic reset limit switch. It will close the circuit once the furnace cools to 180°F without requiring technician intervention, though the underlying cause of the trip should be diagnosed.

Can I use an aftermarket L200-20F switch instead?
While generic switches may share the same temperature ratings, the Carrier 338096-707 is a factory-authorized assembly that ensures the physical mounting and terminal orientation align perfectly with OEM specifications, preventing field-modification errors.

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.