Trane KIT20350 Control Kit Board

The Trane KIT20350 Control Kit Board is the essential OEM furnace ignition upgrade designed to restore reliable operation in 80V and 120V systems. As a veteran-grade integrated furnace control (IFC) replacement, this kit is specifically engineered to replace aging or failing CNT5159 and CNT4984 (as well as CNT08012) modules. By converting older silicon nitride ignitor configurations to the current 120V standard, the Trane KIT20350 resolves common "no-heat" calls and intermittent ignition failures caused by board-level logic errors or voltage drop-off. The kit includes the refined circuit board, a high-durability ignitor, and all necessary wiring harnesses to ensure seamless HVAC part compatibility. For a technician in the field, this direct replacement kit eliminates the need for field-improvised wiring, providing a clean install that stabilizes the combustion sequence and secures the flame sensing circuit against nuisance trips.

• Direct OEM Replacement: Form-fit-function match for CNT5159 and CNT4984, ensuring all mounting points and terminal layouts align with the original chassis.
• Universal Ignition Support: Engineered to handle the transition from 80V to 120V systems, providing a robust ignitor conversion for Trane and American Standard gas furnaces.
• Diagnostic Precision: Features an onboard LED for rapid furnace troubleshooting, allowing you to identify limit switch trips or flame sensor failures instantly.
• Stable Logic Performance: Advanced circuitry manages the inducer motor, gas valve, and blower timing with high precision to prevent short-cycling.

Is the KIT20350 compatible with older CNT4984 boards?
Yes. The Trane KIT20350 is the factory-designated successor and direct replacement for both the CNT4984 and CNT5159 models, designed to update the system to current ignition standards.

What is included in this ignitor conversion kit?
The kit contains the integrated furnace control board, a replacement 120V silicon nitride ignitor, mounting hardware, and the necessary wiring jumpers to adapt to your specific furnace model.

Does this board support two-stage heating cycles?
This kit is primarily designed for single-stage and specific compatible gas furnace models. Always verify your specific furnace model number against the manufacturer’s cross-reference list before installation.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.