Description
The Trane CNT4363 Defrost Control Board is a genuine OEM HVAC control module specifically designed for use in Trane heat pump systems to manage and optimize the defrost cycle. When frost builds up on the outdoor evaporator coil during cold weather operation, this control board accurately detects temperature changes and activates the defrost process to melt ice, helping maintain airflow, system efficiency, and reliable heat pump performance. This part is also sometimes referenced or replaced by the updated part number CNT04363.
Key Features
- OEM Quality Construction — Manufactured to Trane original equipment specifications for dependable performance and long service life.
- Defrost Cycle Management — Controls and initiates the defrost process by reading frost conditions and coordinating with heat pump components.
- 24-Volt Operation — Designed for standard low-voltage HVAC control circuits common in Trane systems.
- Improves System Efficiency — Helps prevent excessive frost accumulation, which can restrict airflow and reduce heat pump efficiency.
- Direct Replacement — Ideal drop-in replacement for worn, damaged, or failed defrost control boards specified for compatible Trane heat pump models.
