The Baxi thermistor decreases the current resistance as the temperature increases. The printed circuit board sends a current to the thermistor and can tell whether an increase or decrease in temperature is needed by the resistance provided by the thermistor.
This part is designed for the Baxi combi HE, Combi Instant HE, Main HE System, Potterton Performa and Potterton Performa system boilers
Technical specification
Waist Sizeaa34cc12gvTypeSensorCompatible WithMain HE, Combi, Performa and System IE boilersSupplier Part NumberSO11001UBrand NameUnbranded