The Baxi Hall Effect Sensor 5114767 is a replacement flow detection component designed for selected Baxi Duo-tec HE boilers.
The sensor detects water flow within the boiler's hydraulic system and relays this information to the printed circuit board (PCB). When the pump operates and water begins circulating, the sensor helps the boiler control system recognise the flow condition and initiate the appropriate operating sequence.
This component plays an important role in the boiler's control system, supporting the operation of heating and domestic hot water functions.