The Baxi Potterton thermistor sensor decreases circuit resistance in line with temperature increases. The Printed Control Board (PCB) of a boiler sends a current to the thermistor, reading the relative resistance to determine if a reduction or increase in heat is necessary.
Genuine replacement part for Potterton
Technical specification
Waist Sizeaa48ce19gvTypeNTC SensorCompatible WithBaxi Main 9 HE, Baxi Main 12 HE, Baxi Main 15 HE, Baxi Main 18 HE, Baxi Main 24 HESupplier Part Number5113044Range DescriptionPottertonBrand NameBaxi
Reviews
Baxi Potterton Temperature Sensor Negative Temperature Coefficient 5113044