Lennox 97L01 97L0101 Control Limit Switch is an OEM temperature safety control designed to protect compatible Lennox gas furnaces from overheating conditions. This control monitors internal furnace temperatures and automatically interrupts operation if unsafe limits are reached, helping prevent damage to critical components and ensuring safe, reliable system performance.

Manufactured to Lennox factory specifications, this control limit switch is engineered for precise temperature response, long service life, and dependable operation in residential and light commercial HVAC applications. It is a direct replacement for the original factory-installed part and restores proper safety operation when replacing a failed or out-of-range limit control.

 

Product overview:

The Lennox 97L01 control limit switch plays a critical role in furnace safety by opening the circuit when excessive temperatures are detected. Once temperatures return to normal operating range, the switch resets, allowing the system to resume operation. Using a genuine OEM control ensures correct calibration and compatibility with Lennox control boards and wiring harnesses.

 

Key features:

• Genuine OEM Lennox replacement part
• Protects furnace from overheating conditions
• Accurate temperature sensing and response
• Direct-fit replacement with factory specifications
• Designed for long-term reliability

 

Applications:

• Compatible with select Lennox gas furnace models
• Used in residential and light commercial HVAC systems