Description
The Lennox 24X45 is an OEM defrost sensor with integrated wiring harness, engineered as a direct replacement for compatible Lennox heat pump and refrigeration systems. This sensor monitors coil temperatures during the defrost cycle, signaling the control board to initiate and terminate defrost sequences at the correct intervals — protecting system efficiency and preventing ice buildup on the outdoor coil.
Key Features
- OEM Lennox replacement part — ensures proper fit and function
- Integrated wiring harness for simplified installation and secure connections
- Monitors outdoor coil temperature to control defrost cycle initiation and termination
- Helps prevent ice accumulation and maintains heat pump efficiency
- Designed for direct plug-in compatibility with Lennox defrost control boards
Application
The 24X45 defrost sensor with harness is intended for use in Lennox heat pump systems where the original defrost sensor has failed or become damaged. Proper defrost sensor operation is critical to maintaining heating capacity, preventing coil icing, and protecting compressor health during cold-weather operation.
Installation Notes
- Always disconnect power before servicing or replacing sensor components
- Verify compatibility with your specific Lennox model before ordering
- Route harness away from sharp edges and heat sources during reinstallation







Reviews
There are no reviews yet.