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This typically suggests the flame sensor is not detecting a pilot flame within the 90sTFI window or there is an issue with the spark ignition lead
Precise Pressure Calibration: Factory-set for 0
Does this assembly fail open or fail closed
Smith and Lochinvar control systems without field modifications
or Blue: 8-13 PSI)
Trane BRD5766 Control Board 340155-7026 This typically suggests the flameThe Trane BRD5766 Main Control Board is a critical PCB component engineered for high performance environmental regulation in commercial and residential HVAC systems. As the primary logic center, this printed circuit board interprets signals from temperature and airflow sensors to modulate the furnace, air conditioner, and blower motor at peak efficiency. Designed to replace aging or faulty Trane HVAC control boards, the BRD5766 ensures precise staging