The thermistor works by decreasing current resistance in a manner that is inversely proportional to the temperature of the thermistor. The  PCB sends a current to the thermistor and can tell whether less or more heat is needed by the resistance provided back.

This Worcester Bosch safety sensor is a safety device suitable for use in Buderus 500 24C, 24S and 28C boilers. This sensor decreases circuit resistance in line with temperature increases.  As the leading supplier of parts for all the major boiler manufacturers we’ve got a wealth of experience and knowledge in this area, and with over 450 branches we carry more heating spare parts in more places than any other merchant to help you improve your first time fix rate.

Buderus
Safety Sensor
7101564

Trusted by Tradespeople

Buderus Safety Sensor 7101564

Trusted by Tradespeople

Buderus
Safety Sensor
7101564