The Worcester Bosch central heating sensor increases the current resistance as it gets colder The printed circuit board sends a current to the thermistor and can tell whether more or less heat is needed by the relative resistance provided by the thermistor.
Overview
The Worcester Bosch central heating sensor increases the current resistance as it gets colder The printed circuit board sends a current to the thermistor and can tell whether more or less heat is needed by the relative resistance provided by the thermistor.