Description
The Trane CNT7943 is an OEM replacement control board engineered for 1-stage furnace systems using 120-volt hot surface ignition (HSI). Designed to Trane’s exacting standards, this board serves as the central command for furnace sequencing — managing ignition, burner operation, blower timing, and safety circuit monitoring to keep your heating system running safely and efficiently.
Key Features
- OEM Trane replacement control board for precise fit and function
- 120-volt hot surface ignition (HSI) compatible
- Designed for 1-stage furnace operation
- Manages ignition sequencing, blower timing, and burner control
- Integrates with furnace safety circuits for reliable fault protection
- Direct drop-in replacement minimizes installation time
Product Specifications
- Brand: Trane
- Part Number: CNT7943
- Voltage: 120V
- Ignition Type: Hot Surface Ignition (HSI)
- Staging: 1-Stage
- Application: Furnace Control Board
Application
The CNT7943 is ideal for HVAC technicians and contractors performing furnace control board replacements on compatible Trane single-stage heating systems. Using a genuine Trane part ensures compatibility with existing wiring harnesses and system controls, reducing diagnostic time and callbacks.
Reviews
There are no reviews yet.