Saunier Duval 72 S57211 Boiler Safety Thermostat

✅ Testing a boiler thermistor.

✅ Boiler repair reports: One of the classic faults in boiler operation is the failure of thermistors.

✅ Because of the many questions asked in class and that I see in training workshops, I am going to settle this doubt that many people who are starting in the sector have, as well as the curious who want to know how boiler components work.

✅ A promise is a promise.

✅ testing a thermistor in a boiler is simple, you just have to follow a few steps.

✅ 1.Unplug the boiler and disconnect the electrical cable connecting to the thermistor.

✅ 2.Next, measure the resistance it offers with the multimeter.

✅ 3.Set the multimeter to the resistance scale, remember with the boiler unplugged, and measure the resistance between the terminals of the thermistor; it varies depending on the brand but normally if it gives a reading it is fine.

✅ This information is intended for people interested in improving their training in boilers; these checks are carried out in workshops with teachers or technicians specialised in boilers of all kinds.