Trane CNT6696 Control Board

Professional-grade Trane CNT6696 Fan Timer Control Board serves as a direct OEM component engineered for precise HVAC blower motor timing and sequenced airflow management. This assembly is critical for maintaining correct furnace fan delay intervals, ensuring that your air handler or downflow system properly clears the heat exchanger and optimizes thermal distribution. Designed for seamless integration into Trane and American Standard 4FWFA030A1008B air handlers, this board manages the transition between heating/cooling calls and blower activation with millisecond accuracy, preventing coil frosting and maximizing energy efficiency.

The CNT6696 is built with industrial-spec relay contacts and logic circuits to handle high-cycle residential and light commercial demands. As a technical replacement part, it features a standardized pin configuration for rapid field installation, reducing downtime during emergency service calls. Technicians rely on this system control module to resolve persistent blower sequencing failures and communication errors within the low-voltage control circuit.

• Ensures accurate blower motor sequencing for consistent home comfort.
• Hard-coded cooling fan timer logic prevents moisture buildup on coils.
• Directly replaces older Trane and American Standard fan control iterations.
• Engineered to protect the HVAC system from thermal stress via controlled delay cycles.
• Optimized for low-voltage signal clarity in Trane unit repairs.

• What symptoms indicate a failing fan timer board? Common indicators include the blower motor failing to start after a thermostat call, or the fan running continuously even when the system is not actively heating or cooling.
• Is the CNT6696 compatible with American Standard units? Yes, this is an OEM component for both Trane and American Standard brands, specifically utilized in select downflow air handler configurations.
• Does this board handle the primary system logic? This board specifically manages fan timing and blower relays; it operates in tandem with the primary furnace or air handler ignition/control board.

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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.