Product Information: The thermistor increases the circuit resistance as it gets colder The printed circuit board sends a current to the thermistor and can tell whether an increase or decrease in temperature is needed by the relative resistance in the thermistor.
This part is present in 19 different boilers in the Ferroli range including the Ferroli FALCON II -5.2001 , F24 E , TEMPRA 24 , TEMPRA 30 , DOMINA 80 .