Honeywell C6065FH1706 air pressure switch

Honeywell Air Pressure Switch C6065FH1706U (628610) is an original component widely used in gas boilers and burners, particularly in Baxi equipment. This pressure switch controls the presence of draft or air pressure in the system: it allows gas supply and ignition only when the fan has created the necessary pressure. Technical specifications: Part numbers: C6065FH1706U, 628610 (Baxi) Manufacturer: Honeywell Purpose: Control of air pressure/draft in boiler equipment. Operating principle: Mechanical pressure switch (pneumatic relay). Function: Blocks burner start-up in the absence of required air pressure. Key advantages: Safety: This device is a critical safety element. It prevents gas supply to the combustion chamber if the fan has not created the necessary pressure or if the flue is blocked. Switching accuracy: Calibrated to specific switching values typical for Baxi boilers. Once pressure reaches the threshold, contacts close, allowing the burner to operate. Robust design: Housing is usually made of impact-resistant plastic, and the diaphragm is designed for long service life under temperature fluctuations and vibration. Easy replacement: Direct replacement for the standard pressure switch, ensuring full compatibility with the Venturi assembly and control board. Signs of malfunction: The following symptoms indicate a faulty pressure switch: Boiler does not start: When attempting to turn on heating or hot water, the fan runs but ignition does not occur, and the device displays an air pressure or draft error. Spontaneous shutdown: The burner starts but then goes out after some time with a fan error.