The thermistor works by decreasing current resistance in a manner that is inversely proportional to the temperature of the thermistor. The electronic control board sends a current to the thermistor and can tell whether a decrease or increase in heat is n
Fits a Number of Appliances
Technical specification
TypeThermistorToilet Cistern CapacityFTW--Supplier Part Number20025233Brand NameVaillant
Reviews
Vaillant Protherm 0020025233 Temperature Thermistor Sensor.