Lennox 15D55 Defrost Control Board
The Lennox 15D55 is an OEM replacement defrost control board engineered to restore proper defrost cycle operation in compatible Lennox heat pump systems. Designed to match original factory specifications, this board ensures accurate initiation and termination of defrost cycles, helping to maintain peak system efficiency and protect your equipment from frost buildup damage.
Key Features
- OEM replacement defrost control board for compatible Lennox heat pump systems
- Engineered to match original factory design and specifications
- Manages defrost cycle initiation and termination for reliable heat pump operation
- Helps prevent frost and ice accumulation on outdoor coils
- Direct drop-in replacement for simplified installation
- Supports consistent system performance and energy efficiency
Application
The Lennox 15D55 Defrost Control Board is intended for use in Lennox heat pump units requiring defrost cycle control. Always verify compatibility with your specific equipment model before installation. Consult the equipment service manual or a qualified HVAC technician for proper installation and configuration.








