If the draft inducer fails to meet the required vacuum setpoint due to a blocked vent or motor failure

Automatic Reset Function: Features an integrated auto limit switch design that re-engages the heating circuit without manual intervention after cooling

It should not be used in steam applications

Key Benefits Interchangeable Accuracy: Verified ±2% NIST traceable calibration provides reliable performance without the need for on-site calibration tools

and Comfortmaker replacement parts catalogs

Wayne 63963-001 Ignition Board 30067439-890 If the draft inducer failsThe Wayne 63963 001 Ignition Board, which is identical to the 35 605953 221, serves as a critical component for maintaining precise control over high efficiency burner firing sequences. As a veteran grade Wayne Combustion ignition control board, this module handles the high voltage spark generation required for reliable fuel ignition while simultaneously providing continuous flame monitoring and safety self termination. Engineered for commercial HVAC