The Carrier CEBD430856-07-RA Defrost Control Board is an OEM-quality replacement designed to manage and optimize the defrost cycle in Carrier heat pumps and packaged units. This control board ensures reliable system operation by preventing frost buildup, maintaining efficient airflow, and protecting the compressor during cold-weather operation. It is the ideal solution for units experiencing defrost failure, short cycling, or inconsistent heating performance. Key Features OEM-compatible defrost control board for Carrier HVAC systems Ensures proper timing and activation of defrost cycles Improves overall heating efficiency and system reliability Protects compressor during low-temperature operation Durable design built for long-term performance in demanding environments Specifications Part Number: CEBD430856-07-RA Component Type: Defrost Control Board Application: Heat pump and packaged HVAC units Function: Manages defrost cycle timing, sensors, and compressor protection Compatible Models (shortened list) Carrier 50KCQA04 5A Carrier 50KCQA04 3A Carrier 50KCQA04 1A ?and 3,700+ more. Why Choose This Item Choose this defrost control board to restore reliable defrost operation, improve heating efficiency, and maintain smooth HVAC system performance. With OEM-level compatibility, durable electronic components, and broad model coverage, it is the ideal replacement for keeping your Carrier system running dependably in all weather conditions.